{"id":2948,"date":"2024-01-12T14:43:57","date_gmt":"2024-01-12T09:13:57","guid":{"rendered":"https:\/\/learnupboard.com\/?p=2948"},"modified":"2024-01-12T14:43:57","modified_gmt":"2024-01-12T09:13:57","slug":"neet-biology-mcqs-cell-cycle-and-cell-division","status":"publish","type":"post","link":"https:\/\/learnupboard.com\/neet-biology-mcqs-cell-cycle-and-cell-division\/","title":{"rendered":"NEET Biology Multiple Choice Questions – Cell Cycle And Cell Division"},"content":{"rendered":"

Cell Cycle And Cell Division Multiple Choice Question and Answers<\/h2>\n

Question 1. The cell cycle of a somatic cell usually consists of all the following except<\/strong><\/p>\n

    \n
  1. The first part of the interphase is called as G1<\/sub> phase. During this phase, there is a maximum increase in cell size and there is active synthesis of RNA and proteins.<\/li>\n
  2. In the synthetic phase (S-phase), the DNA molecule of each chromosome replicates by the synthesis of a new DNA molecule.<\/li>\n
  3. During G2<\/sub>-phase, a cell contains double the amount (4n) of DNA present in the original diploid cell (2n).<\/li>\n
  4. The cell cycle consists of a short interphase and a long M-phase.<\/li>\n<\/ol>\n

    Answer:<\/strong> 4. The cell cycle consists of a short interphase and a long M-phase.<\/p>\n

    Question 2. Which of the following is the most important point in the regulation of the cell cycle during which it must decide whether the cell will start a new cycle or will become arrested in G0<\/sub> phase?<\/strong><\/p>\n

      \n
    1. S-phase<\/li>\n
    2. G1<\/sub> -phase<\/li>\n
    3. G2 <\/sub>-phase<\/li>\n
    4. Interphase<\/li>\n<\/ol>\n

      Answer:<\/strong> 2. G1<\/sub> -phase<\/p>\n

      Question 3. Histone protein synthesis occurs during<\/strong><\/p>\n

        \n
      1. G1<\/sub>-phase<\/li>\n
      2. G2<\/sub>-phase<\/li>\n
      3. S-phase<\/li>\n
      4. Prophase<\/li>\n<\/ol>\n

        Answer:<\/strong> 3. S-phase<\/p>\n

        Question 4. The sequence of cell cycle is<\/strong><\/p>\n

          \n
        1. S, M, G1<\/sub> and G2<\/sub><\/li>\n
        2. G1<\/sub>, G2<\/sub>, S, and M<\/li>\n
        3. M, G1<\/sub>, G2<\/sub>, and S<\/li>\n
        4. G1<\/sub>, S, G2<\/sub>, and M<\/li>\n<\/ol>\n

          Answer:<\/strong> 4. G1<\/sub>, S, G2<\/sub>, and M<\/p>\n

          Question 5. During the cell cycle, DNA replicates<\/strong><\/p>\n

            \n
          1. Once<\/li>\n
          2. Twice<\/li>\n
          3. Many times<\/li>\n
          4. Not at all<\/li>\n<\/ol>\n

            Answer:<\/strong> 1. Once<\/p>\n

            Question 6. The synthesis of spindle proteins called as tubulin occurs during<\/strong><\/p>\n

              \n
            1. G1<\/sub>-phase<\/li>\n
            2. S-phase<\/li>\n
            3. G2<\/sub>-phase<\/li>\n
            4. M-phase<\/li>\n<\/ol>\n

              Answer:<\/strong> 3. G2<\/sub>-phase<\/p>\n

              Question 7. If a mitotic division is restricted in the G-phase of the cell, the condition is known as<\/strong><\/p>\n

                \n
              1. G2<\/sub>-phase<\/li>\n
              2. S-phase<\/li>\n
              3. G0<\/sub>-phase<\/li>\n
              4. M-phase<\/li>\n<\/ol>\n

                Answer:<\/strong> 3. G0<\/sub>-phase<\/p>\n

                Question 8. The condensation of chromosomes with visible centromere occurs during<\/strong><\/p>\n

                  \n
                1. G1<\/sub>-phase<\/li>\n
                2. S-phase<\/li>\n
                3. G2<\/sub>-phase<\/li>\n
                4. M-phase<\/li>\n<\/ol>\n

                  Answer:<\/strong> 4. M-phase<\/p>\n

                  Question 9. The stage of cell cycle when cell has undergone differentiation is<\/strong><\/p>\n

                    \n
                  1. G0<\/sub><\/li>\n
                  2. G1<\/sub><\/li>\n
                  3. G2<\/sub><\/li>\n
                  4. S<\/li>\n<\/ol>\n

                    Answer:<\/strong> 1. G0<\/sub><\/p>\n

                    Question 10. The phase of cell cycle when DNA polymerase is active is<\/strong><\/p>\n

                      \n
                    1. G1<\/sub><\/li>\n
                    2. S<\/li>\n
                    3. G2<\/sub><\/li>\n
                    4. M<\/li>\n<\/ol>\n

                      Answer:<\/strong> 2. S<\/p>\n

                      Question 11. The G0<\/sub>-phase of cell denotes<\/strong><\/p>\n

                        \n
                      1. Exit of cell from cell cycle<\/li>\n
                      2. Checkpoint before entering the next phase<\/li>\n
                      3. Death of cell<\/li>\n
                      4. Temporary pause<\/li>\n<\/ol>\n

                        Answer:<\/strong> 1. Exit of cell from cell cycle<\/p>\n

                        Question 12. During the cell cycle, two molecules of DNA are present in chromosomes during<\/strong><\/p>\n

                          \n
                        1. G1<\/sub> -phase<\/li>\n
                        2. Beginning of S-phase<\/li>\n
                        3. G2<\/sub>-phase<\/li>\n
                        4. End of M-phase<\/li>\n<\/ol>\n

                          Answer:<\/strong> 3. G2<\/sub>-phase<\/p>\n

                          Question 13. Antephase is the phase in which ATP is synthesized during cell division. It refers to<\/strong><\/p>\n

                            \n
                          1. G0<\/sub>-phase<\/li>\n
                          2. G1<\/sub>-phase<\/li>\n
                          3. S-phase<\/li>\n
                          4. G2<\/sub>-phase<\/li>\n<\/ol>\n

                            Answer:<\/strong> 2. G1<\/sub>-phase<\/p>\n

                            Question 14. Which of the following materials you will select to study mitosis?<\/strong><\/p>\n

                              \n
                            1. Anthers<\/li>\n
                            2. Onion root tips<\/li>\n
                            3. Flower bud<\/li>\n
                            4. Pollen<\/li>\n<\/ol>\n

                              Answer:<\/strong> 2. Onion root tips<\/p>\n

                              Question 15. Mitosis in animal cell is<\/strong><\/p>\n

                                \n
                              1. Anastral<\/li>\n
                              2. Amphiastral<\/li>\n
                              3. Premitosis, acentric<\/li>\n
                              4. Eumitosis acentric<\/li>\n<\/ol>\n

                                Answer:<\/strong> 2. Amphiastral<\/p>\n

                                Question 16. Mitosis is found in<\/strong><\/p>\n

                                  \n
                                1. Lower animals<\/li>\n
                                2. Higher animals<\/li>\n
                                3. All plants<\/li>\n
                                4. All living organisms<\/li>\n<\/ol>\n

                                  Answer:<\/strong> 4. All living organisms<\/p>\n

                                  Question 17. Which of the following is the proper sequence in mitosis?<\/strong><\/p>\n

                                    \n
                                  1. Metaphase, telophase, prophase, and anaphase<\/li>\n
                                  2. Prophase, metaphase, anaphase, and telophase<\/li>\n
                                  3. Anaphase, metaphase, telophase, and prophase<\/li>\n
                                  4. Telophase, anaphase, metaphase, and prophase<\/li>\n<\/ol>\n

                                    Answer:<\/strong> 2. Prophase, metaphase, anaphase, and telophase<\/p>\n

                                    Question 18. The chromosome morphology is best studied during<\/strong><\/p>\n

                                      \n
                                    1. Prophase<\/li>\n
                                    2. Metaphase, as the chromosomes are most condensed<\/li>\n
                                    3. Anaphase, as the chromosomes are most condensed<\/li>\n
                                    4. Telophase<\/li>\n<\/ol>\n

                                      Answer:<\/strong> 2. Metaphase, as the chromosomes are most condensed<\/p>\n

                                      Question 19. The two daughter cells formed during mitosis contain<\/strong><\/p>\n

                                        \n
                                      1. The same amount of DNA but a set of chromosomes different from those of parental cells.<\/li>\n
                                      2. The same amount of DNA and the same set of chromosomes as those of the parent cell.<\/li>\n
                                      3. Half the amount of DNA and the same set of chromosomes as those of the parent cell.<\/li>\n
                                      4. Double the amount of DNA and a set of chromosomes different from those of the parent cell.<\/li>\n<\/ol>\n

                                        Answer:<\/strong> 2. The same amount of DNA and the same set of chromosomes as those of the parent cell.<\/p>\n

                                        Question 20. Colchicine is a mitotic poison because it<\/strong><\/p>\n

                                          \n
                                        1. Causes splitting up of chromosomes<\/li>\n
                                        2. Inhibits the formation of mitotic spindle<\/li>\n
                                        3. Stops the replication of chromosomes<\/li>\n
                                        4. Agglutinates the chromosomes<\/li>\n<\/ol>\n

                                          Answer:<\/strong> 2. Inhibits the formation of mitotic spindle<\/p>\n

                                          Question 21. Higher plants differ from animals in having<\/strong><\/p>\n

                                            \n
                                          1. Spindle microtubule<\/li>\n
                                          2. Anastral mitosis<\/li>\n
                                          3. Kinetochores<\/li>\n
                                          4. Disappearance of nucleolus during prophase<\/li>\n<\/ol>\n

                                            Answer<\/strong>: 2. Anastral mitosis<\/p>\n

                                            Question 22. During which phase the centromere splits and chroma\u00actids move toward the opposite poles by the shortening of spindle fibers attached to centromeres?<\/strong><\/p>\n

                                              \n
                                            1. Prophase<\/li>\n
                                            2. Metaphase<\/li>\n
                                            3. Anaphase<\/li>\n
                                            4. Telophase<\/li>\n<\/ol>\n

                                              Answer:<\/strong> 3. Anaphase<\/p>\n

                                              Question 23. The region of the attachment of chromosomes to spindle fibers is called<\/strong><\/p>\n

                                                \n
                                              1. Centromere<\/li>\n
                                              2. Centriole<\/li>\n
                                              3. Chromonemata<\/li>\n
                                              4. Centrosome<\/li>\n<\/ol>\n

                                                Answer:<\/strong> 1. Centromere<\/p>\n

                                                Question 24. Which of the following phases are the longest and shortest in mitosis?<\/strong><\/p>\n

                                                  \n
                                                1. Metaphase, anaphase<\/li>\n
                                                2. Prophase, anaphase<\/li>\n
                                                3. Telophase, anaphase<\/li>\n
                                                4. Prophase, telophase<\/li>\n<\/ol>\n

                                                  Answer:<\/strong> 2. Prophase, anaphase<\/p>\n

                                                  Question 25. The nuclear envelope disappears at<\/strong><\/p>\n

                                                    \n
                                                  1. Metaphase<\/li>\n
                                                  2. Anaphase<\/li>\n
                                                  3. Early prophase<\/li>\n
                                                  4. Late prophase<\/li>\n<\/ol>\n

                                                    Answer:<\/strong> 4. Late prophase<\/p>\n

                                                    Question 26. When nuclear division takes place without cytoplasmic division, it results in the formation of<\/strong><\/p>\n

                                                      \n
                                                    1. Polyteny<\/li>\n
                                                    2. Syncytium<\/li>\n
                                                    3. Polyploidy<\/li>\n
                                                    4. Amitosis<\/li>\n<\/ol>\n

                                                      Answer:<\/strong> 2. Syncytium<\/p>\n

                                                      Question 27. The cell would normally proceed to mitosis without interruption<\/strong><\/p>\n

                                                        \n
                                                      1. When it has entered S-phase<\/li>\n
                                                      2. Once it has entered G2 <\/sub>phase<\/li>\n
                                                      3. At any time during coil activity<\/li>\n
                                                      4. Irrespective of any phase<\/li>\n<\/ol>\n

                                                        Answer<\/strong>: 1. When it has entered S phase<\/p>\n

                                                        Question 28. The term \u201cmeiosis\u201d was coined by<\/strong><\/p>\n

                                                          \n
                                                        1. Flemming<\/li>\n
                                                        2. Farmer and Moore<\/li>\n
                                                        3. Strasburger<\/li>\n
                                                        4. Hofmeister<\/li>\n<\/ol>\n

                                                          Answer:<\/strong> 2. Farmer and Moore<\/p>\n

                                                          Question 29. Meiosis is significant because it results in<\/strong><\/p>\n

                                                            \n
                                                          1. Recombinations<\/li>\n
                                                          2. Eggs and sperms<\/li>\n
                                                          3. Four daughter cells<\/li>\n
                                                          4. Genetically similar daughter cells<\/li>\n<\/ol>\n

                                                            Answer:<\/strong> 1. Recombinations<\/p>\n

                                                            Question 30. All are the essential stages that take place during meiosis, except<\/strong><\/p>\n

                                                              \n
                                                            1. Two successive divisions without any DNA replication occurring between them<\/li>\n
                                                            2. Formation of chiasmata and crossing over<\/li>\n
                                                            3. Segregation of homologous chromosomes<\/li>\n
                                                            4. Number of chromosomes in daughter cells after meiosis 2 is reduced to half, but the amount of DNA remains the same<\/li>\n<\/ol>\n

                                                              Answer:<\/strong> 4. Segregation of homologous chromosomes<\/p>\n

                                                              Question 31. Stages in the proper sequence of prophase-1 are<\/strong><\/p>\n

                                                                \n
                                                              1. Zygotene, leptotene, pachytene, diakinesis, and diplotene<\/li>\n
                                                              2. Leptotene, zygotene, pachytene, diplotene, and diakinesis<\/li>\n
                                                              3. Leptotene, zygotene, pachytene, diakinesis, and diplotene<\/li>\n
                                                              4. Leptotene, pachytene, zygotene, diakinesis, and diplotene<\/li>\n<\/ol>\n

                                                                Answer:<\/strong> 2. Leptotene, zygotene, pachytene, diplotene, and diakinesis<\/p>\n

                                                                Question 32. The intimate pairing between the two members of each homologous chromosome pair is initiated by the process called as synapsis, leading to bivalent formation, which occurs in<\/strong><\/p>\n

                                                                  \n
                                                                1. Zygotene<\/li>\n
                                                                2. Pachytene<\/li>\n
                                                                3. Diplotene<\/li>\n
                                                                4. Diakinesis<\/li>\n<\/ol>\n

                                                                  Answer:<\/strong> 1. Zygotene<\/p>\n

                                                                  Question 33. Mitosis differs from meiosis in not having<\/strong><\/p>\n

                                                                    \n
                                                                  1. Duplication of DNA<\/li>\n
                                                                  2. Long prophase<\/li>\n
                                                                  3. Interphase<\/li>\n
                                                                  4. Synapsis and crossing over<\/li>\n<\/ol>\n

                                                                    Answer:<\/strong> 4. Synapsis and crossing over<\/p>\n

                                                                    Question 34. Recombination nodules which mediate for chromosome recombination occur during<\/strong><\/p>\n

                                                                      \n
                                                                    1. Zygotene<\/li>\n
                                                                    2. Diplotene<\/li>\n
                                                                    3. Diakinesis<\/li>\n
                                                                    4. Pachytene<\/li>\n<\/ol>\n

                                                                      Answer:<\/strong> 4. Pachytene<\/p>\n

                                                                      Question 35. Crossing over occurs during<\/strong><\/p>\n

                                                                        \n
                                                                      1. Pachytene<\/li>\n
                                                                      2. Diplotene<\/li>\n
                                                                      3. Diakinesis<\/li>\n
                                                                      4. Zygotene<\/li>\n<\/ol>\n

                                                                        Answer:<\/strong> 1. Pachytene<\/p>\n

                                                                        Question 36. In oocytes, which of the following phase can last for months or years, since it is at this stage the chromosomes decondense and engage in RNA synthesis?<\/strong><\/p>\n

                                                                          \n
                                                                        1. Diakinesis<\/li>\n
                                                                        2. Diptotene<\/li>\n
                                                                        3. Pachytene<\/li>\n
                                                                        4. Leptolene<\/li>\n<\/ol>\n

                                                                          Answer:<\/strong> 2. Diptotene<\/p>\n

                                                                          Question 37. In nuclear membrane, nucleoli are distinctly seen in<\/strong><\/p>\n

                                                                            \n
                                                                          1. Prophase<\/li>\n
                                                                          2. Metaphase<\/li>\n
                                                                          3. Anaphase<\/li>\n
                                                                          4. Interphase<\/li>\n<\/ol>\n

                                                                            Answer:<\/strong> 4. Interphase<\/p>\n

                                                                            Question 38. In the meiotic cell division, 56 daughter cells are produced by two successive divisions in which<\/strong><\/p>\n

                                                                              \n
                                                                            1. The first division is equational, second is educational<\/li>\n
                                                                            2. The first division is reductional, and the second is equational<\/li>\n
                                                                            3. Both divisions are reductional<\/li>\n
                                                                            4. Both divisions are equational<\/li>\n<\/ol>\n

                                                                              Answer:<\/strong> 2. First division is reductional, and second is equational<\/p>\n

                                                                              Question 39. The number of chromosomes in the primary oocyte is<\/strong><\/p>\n

                                                                                \n
                                                                              1. Same as that of the secondary oocyte<\/li>\n
                                                                              2. Half as that of the secondary oocyte<\/li>\n
                                                                              3. Double as that of the secondary oocyte<\/li>\n
                                                                              4. Same as that of the ovum<\/li>\n<\/ol>\n

                                                                                Answer:<\/strong> 3. Double as that of secondary oocyte<\/p>\n

                                                                                Question 40. Personalization is related to<\/strong><\/p>\n

                                                                                  \n
                                                                                1. Diakinesis<\/li>\n
                                                                                2. Meiosis<\/li>\n
                                                                                3. Mitosis<\/li>\n
                                                                                4. Diplotene<\/li>\n<\/ol>\n

                                                                                  Answer:<\/strong> 1. Diakinesis<\/p>\n

                                                                                  Question 41. Meiosis involves<\/strong><\/p>\n

                                                                                    \n
                                                                                  1. One nuclear division and one chromosome division<\/li>\n
                                                                                  2. Two nuclear divisions and one chromosome division<\/li>\n
                                                                                  3. One nuclear division and two chromosome divisions<\/li>\n
                                                                                  4. Two nuclear divisions and two chromosome divisions<\/li>\n<\/ol>\n

                                                                                    Answer:<\/strong> 2. Two nuclear divisions and one chromosome division<\/p>\n

                                                                                    Question 42. In meiosis, the daughter cells differ from the parent cell as well as amongst themselves due to<\/strong><\/p>\n

                                                                                      \n
                                                                                    1. Segregation and crossing over<\/li>\n
                                                                                    2. Independent assortment and crossing over<\/li>\n
                                                                                    3. Independent assortment, segregation, and crossing over<\/li>\n
                                                                                    4. Segregation and independent assortment<\/li>\n<\/ol>\n

                                                                                      Answer:<\/strong> 2. Independent assortment and crossing over<\/p>\n

                                                                                      Question 43. The movement of homologous chromosomes toward the opposite poles occur by the contraction of spindle fibers during<\/strong><\/p>\n

                                                                                        \n
                                                                                      1. Anaphase<\/li>\n
                                                                                      2. Anaphase-1<\/li>\n
                                                                                      3. Anaphase-2<\/li>\n
                                                                                      4. Metaphase<\/li>\n<\/ol>\n

                                                                                        Answer<\/strong>: 2. Anaphase-1<\/p>\n

                                                                                        Question 44. In plant cells, cytokinesis occurs by<\/strong><\/p>\n

                                                                                          \n
                                                                                        1. Cell plate formation<\/li>\n
                                                                                        2. Invagination<\/li>\n
                                                                                        3. Cleavage<\/li>\n
                                                                                        4. Furrowing<\/li>\n<\/ol>\n

                                                                                          Answer:<\/strong> 1. Cell plate formation<\/p>\n

                                                                                          Question 45. If the egg of an organism has 10 Pg of DNA in its nucleus, how much DNA would a diploid cell of same organism have in G2<\/sub>-phase of meiosis?<\/strong><\/p>\n

                                                                                            \n
                                                                                          1. 10 Pg<\/li>\n
                                                                                          2. 5 Pg<\/li>\n
                                                                                          3. 20 Pg<\/li>\n
                                                                                          4. 40 Pg<\/li>\n<\/ol>\n

                                                                                            Answer:<\/strong> 4. 40 Pg<\/p>\n

                                                                                            Question 46. The minimum number of meiotic divisions required to produce 100 seeds in Cyperus are<\/strong><\/p>\n

                                                                                              \n
                                                                                            1. 400<\/li>\n
                                                                                            2. 125<\/li>\n
                                                                                            3. 200<\/li>\n
                                                                                            4. 25<\/li>\n<\/ol>\n

                                                                                              Answer:<\/strong> 3. 200<\/p>\n

                                                                                              Question 47. Amitosis includes<\/strong><\/p>\n

                                                                                                \n
                                                                                              1. Division involving forming of chromosome bridges<\/li>\n
                                                                                              2. Division involving spindle formation<\/li>\n
                                                                                              3. Division in which the chromosomes arc unequally distributed<\/li>\n
                                                                                              4. Cleavage of the nucleus without recognizable chromosome distribution<\/li>\n<\/ol>\n

                                                                                                Answer:<\/strong> 4. Cleavage of the nucleus without recognizable chromosome distribution<\/p>\n

                                                                                                Question 48. The nuclear membrane is formed around the groups of daughter chromosomes during telophase by<\/strong><\/p>\n

                                                                                                  \n
                                                                                                1. Endoplasmic reticulum<\/li>\n
                                                                                                2. Golgi apparatus<\/li>\n
                                                                                                3. Lysosomes<\/li>\n
                                                                                                4. Microbodies<\/li>\n<\/ol>\n

                                                                                                  Answer:<\/strong> 1. Endoplasmic reticulum<\/p>\n

                                                                                                  Question 49. How many generations are required by a cell of meristem to produce 256 cells?<\/strong><\/p>\n

                                                                                                    \n
                                                                                                  1. 255<\/li>\n
                                                                                                  2. 64<\/li>\n
                                                                                                  3. 128<\/li>\n
                                                                                                  4. 8<\/li>\n<\/ol>\n

                                                                                                    Answer:<\/strong> 4. 8<\/p>\n

                                                                                                    Question 50. To produce 102 pollen grains, how many meiotic divisions are required?<\/strong><\/p>\n

                                                                                                      \n
                                                                                                    1. 25<\/li>\n
                                                                                                    2. 25.5<\/li>\n
                                                                                                    3. 26<\/li>\n
                                                                                                    4. 27<\/li>\n<\/ol>\n

                                                                                                      Answer:<\/strong> 1. 26<\/p>\n

                                                                                                      Question 51. Best material for the study of mitosis in the laboratory<\/strong><\/p>\n

                                                                                                        \n
                                                                                                      1. Anther<\/li>\n
                                                                                                      2. Root tip<\/li>\n
                                                                                                      3. Leaf tip<\/li>\n
                                                                                                      4. Ovary<\/li>\n<\/ol>\n

                                                                                                        Answer:<\/strong> 2. Root tip<\/p>\n

                                                                                                        Question 52. Mitosis occurs in<\/strong><\/p>\n

                                                                                                          \n
                                                                                                        1. Haploid individuals<\/li>\n
                                                                                                        2. Diploid individuals<\/li>\n
                                                                                                        3. Both 1 and 2<\/li>\n
                                                                                                        4. In bacteria only<\/li>\n<\/ol>\n

                                                                                                          Answer:<\/strong> 3. Both 1 and 2<\/p>\n

                                                                                                          Question 53. The number of DNA in chromosomes at G2<\/sub> state of cell cycle is<\/strong><\/p>\n

                                                                                                            \n
                                                                                                          1. One<\/li>\n
                                                                                                          2. Two<\/li>\n
                                                                                                          3. Four<\/li>\n
                                                                                                          4. Eight<\/li>\n<\/ol>\n

                                                                                                            Answer:<\/strong> 2. Two<\/p>\n

                                                                                                            Question 54. Which is correct for meiotic metaphase-1?<\/strong><\/p>\n

                                                                                                              \n
                                                                                                            1. Bivalents are arranged at the equator.<\/li>\n
                                                                                                            2. Univalents are arranged at the equator.<\/li>\n
                                                                                                            3. Non-homologous chromosomes form pairs.<\/li>\n
                                                                                                            4. Spindle fibers are attached at the chromomere.<\/li>\n<\/ol>\n

                                                                                                              Answer:<\/strong> 1. Bivalents are arranged at the equator.<\/p>\n

                                                                                                              Question 55. In which stage of meiosis, does the chromosome number reduce to half?<\/strong><\/p>\n

                                                                                                                \n
                                                                                                              1. Anaphase-1<\/li>\n
                                                                                                              2. Anaphase-2<\/li>\n
                                                                                                              3. Telophase-1<\/li>\n
                                                                                                              4. Telophase-2<\/li>\n<\/ol>\n

                                                                                                                Answer:<\/strong> 1. Anaphase-1<\/p>\n

                                                                                                                Question 56. Chiasmata are formed as a result of<\/strong><\/p>\n

                                                                                                                  \n
                                                                                                                1. Exchange of parts of paired homologous chromosomes<\/li>\n
                                                                                                                2. Exchange to part of unpaired non-homologous chromosomes<\/li>\n
                                                                                                                3. Duplication of parts of paired homologous chromosomes<\/li>\n
                                                                                                                4. Loss of parts of unpaired non-homologous chromosomes<\/li>\n<\/ol>\n

                                                                                                                  Answer:<\/strong> 3. Duplication of parts of paired homologous chromosomes<\/p>\n

                                                                                                                  Question 57. If n = 16 in a plant cell, then how many bivalents in metaphase 1 of meiosis are possible?<\/strong><\/p>\n

                                                                                                                    \n
                                                                                                                  1. 32 bivalents<\/li>\n
                                                                                                                  2. 16 tetravalent<\/li>\n
                                                                                                                  3. 16 bivalents<\/li>\n
                                                                                                                  4. 32 bivalents<\/li>\n<\/ol>\n

                                                                                                                    Answer:<\/strong> 3. 16 bivalents<\/p>\n

                                                                                                                    Question 58. G2<\/sub> phase comes between<\/strong><\/p>\n

                                                                                                                      \n
                                                                                                                    1. Satellite<\/li>\n
                                                                                                                    2. Chromonema<\/li>\n
                                                                                                                    3. S and D phase<\/li>\n
                                                                                                                    4. G, and M phase<\/li>\n<\/ol>\n

                                                                                                                      Answer:<\/strong> 4. G, and M phase<\/p>\n

                                                                                                                      Question 59. Crossing over takes place between<\/strong><\/p>\n

                                                                                                                        \n
                                                                                                                      1. Two sister chromatids<\/li>\n
                                                                                                                      2. Two non-sister chromatids<\/li>\n
                                                                                                                      3. Three homologous chromosomes<\/li>\n
                                                                                                                      4. Four non-homologous chromosomes<\/li>\n<\/ol>\n

                                                                                                                        Answer:<\/strong> 1. Two sister chromatids<\/p>\n

                                                                                                                        Question 60. The significance of meiosis lies in<\/strong><\/p>\n

                                                                                                                          \n
                                                                                                                        1. Maintaining constancy in the number of chromosomes in an organism<\/li>\n
                                                                                                                        2. Production of genetic variability in the population of species<\/li>\n
                                                                                                                        3. Reduction of diploid number of chromosomes to haploid<\/li>\n
                                                                                                                        4. All of the above<\/li>\n<\/ol>\n

                                                                                                                          Answer:<\/strong> 2. Production of genetic variability in the population of species<\/p>\n

                                                                                                                          Question 61. Pairing of homologous chromosomes takes place in<\/strong><\/p>\n

                                                                                                                            \n
                                                                                                                          1. Pachytene<\/li>\n
                                                                                                                          2. Zygotene<\/li>\n
                                                                                                                          3. Diplotene<\/li>\n
                                                                                                                          4. None of these<\/li>\n<\/ol>\n

                                                                                                                            Answer:<\/strong> 4. None of these<\/p>\n

                                                                                                                            Question 62. How many meiotic divisions will be necessary to produce 200 pollen grains?<\/strong><\/p>\n

                                                                                                                              \n
                                                                                                                            1. 100<\/li>\n
                                                                                                                            2. 99<\/li>\n
                                                                                                                            3. 50<\/li>\n
                                                                                                                            4. 200<\/li>\n<\/ol>\n

                                                                                                                              Answer:<\/strong> 2. 99<\/p>\n

                                                                                                                              Question 63. What is the character of mitosis?<\/strong><\/p>\n

                                                                                                                                \n
                                                                                                                              1. Leptotene<\/li>\n
                                                                                                                              2. Zygotene<\/li>\n
                                                                                                                              3. Pachytene<\/li>\n
                                                                                                                              4. None of the above<\/li>\n<\/ol>\n

                                                                                                                                Answer:<\/strong> 3. Pachytene<\/p>\n

                                                                                                                                Question 64. Repulsion of homologous chromosomes takes place in<\/strong><\/p>\n

                                                                                                                                  \n
                                                                                                                                1. Zygotene<\/li>\n
                                                                                                                                2. Leptotene<\/li>\n
                                                                                                                                3. Diakinesis<\/li>\n
                                                                                                                                4. Pachytene<\/li>\n<\/ol>\n

                                                                                                                                  Answer:<\/strong> 4. Pachytene<\/p>\n

                                                                                                                                  Question 65. Synthesis of DNA takes place in<\/strong><\/p>\n

                                                                                                                                    \n
                                                                                                                                  1. G1<\/sub><\/li>\n
                                                                                                                                  2. G2<\/sub><\/li>\n
                                                                                                                                  3. S<\/li>\n
                                                                                                                                  4. None of these<\/li>\n<\/ol>\n

                                                                                                                                    Answer<\/strong>: 3. S<\/p>\n

                                                                                                                                    Question 66. Four daughter cells formed after meiosis are<\/strong><\/p>\n

                                                                                                                                      \n
                                                                                                                                    1. Genetically similar<\/li>\n
                                                                                                                                    2. Genetically different<\/li>\n
                                                                                                                                    3. Anucleate<\/li>\n
                                                                                                                                    4. Multinucleate<\/li>\n<\/ol>\n

                                                                                                                                      Answer:<\/strong> 3. Anucleate<\/p>\n

                                                                                                                                      Question 67. During meiosis, the division of the centromere takes place in<\/strong><\/p>\n

                                                                                                                                        \n
                                                                                                                                      1. First prophase<\/li>\n
                                                                                                                                      2. First anaphase<\/li>\n
                                                                                                                                      3. Second metaphase<\/li>\n
                                                                                                                                      4. Second anaphase<\/li>\n<\/ol>\n

                                                                                                                                        Answer:<\/strong> 2. First anaphase<\/p>\n

                                                                                                                                        Question 68. Bulk of histone proteins are synthesized in<\/strong><\/p>\n

                                                                                                                                          \n
                                                                                                                                        1. G1<\/sub> phase<\/li>\n
                                                                                                                                        2. G2<\/sub> phase<\/li>\n
                                                                                                                                        3. S phase<\/li>\n
                                                                                                                                        4. G0<\/sub> phase<\/li>\n<\/ol>\n

                                                                                                                                          Answer:<\/strong> 4. G0<\/sub> phase<\/p>\n

                                                                                                                                          Question 69. The longest phase of meiosis (I) is<\/strong><\/p>\n

                                                                                                                                            \n
                                                                                                                                          1. Metaphsel-1<\/li>\n
                                                                                                                                          2. Prophase-1<\/li>\n
                                                                                                                                          3. Anaphase-1<\/li>\n
                                                                                                                                          4. Telophase-1<\/li>\n<\/ol>\n

                                                                                                                                            Answer:<\/strong> 3. Anaphase-1<\/p>\n

                                                                                                                                            Question 70. Colchicine prevents the mitosis of cells at<\/strong><\/p>\n

                                                                                                                                              \n
                                                                                                                                            1. Prophase stage<\/li>\n
                                                                                                                                            2. Anaphase stage<\/li>\n
                                                                                                                                            3. Telophase stage<\/li>\n
                                                                                                                                            4. Metaphase stage<\/li>\n<\/ol>\n

                                                                                                                                              Answer:<\/strong> 2. Anaphase stage<\/p>\n

                                                                                                                                              Question 71. The number of DNA in chromosomes at G2<\/sub> stage is<\/strong><\/p>\n

                                                                                                                                                \n
                                                                                                                                              1. One<\/li>\n
                                                                                                                                              2. Two<\/li>\n
                                                                                                                                              3. Four<\/li>\n
                                                                                                                                              4. Eight<\/li>\n<\/ol>\n

                                                                                                                                                Answer:<\/strong> 4. Eight<\/p>\n

                                                                                                                                                Question 72. Synapsis occurs in the _______ phase of meiosis.<\/strong><\/p>\n

                                                                                                                                                  \n
                                                                                                                                                1. Zygotene<\/li>\n
                                                                                                                                                2. Diplotene<\/li>\n
                                                                                                                                                3. Pachytene<\/li>\n
                                                                                                                                                4. Leptotene<\/li>\n<\/ol>\n

                                                                                                                                                  Answer<\/strong>: 2. Diplotene<\/p>\n

                                                                                                                                                  Question 73. The significance of meiosis lies in<\/strong><\/p>\n

                                                                                                                                                    \n
                                                                                                                                                  1. Reduction of chromosome number to one-half<\/li>\n
                                                                                                                                                  2. Maintaining constancy of chromosome number during sexual reproduction<\/li>\n
                                                                                                                                                  3. Production of genetic variability<\/li>\n
                                                                                                                                                  4. All of the above<\/li>\n<\/ol>\n

                                                                                                                                                    Answer:<\/strong> 1. Reduction of chromosome number to one half<\/p>\n

                                                                                                                                                    Question 74. Chromosomes can be seen best during<\/strong><\/p>\n

                                                                                                                                                      \n
                                                                                                                                                    1. Prophase<\/li>\n
                                                                                                                                                    2. Metaphase<\/li>\n
                                                                                                                                                    3. Anaphase<\/li>\n
                                                                                                                                                    4. Telophase<\/li>\n<\/ol>\n

                                                                                                                                                      Answer:<\/strong> 4. Telophase<\/p>\n

                                                                                                                                                      Question 75. What will be the gametic chromosome number of a cell, if a somatic cell have 40 chromosomes?<\/strong><\/p>\n

                                                                                                                                                        \n
                                                                                                                                                      1. 10<\/li>\n
                                                                                                                                                      2. 20<\/li>\n
                                                                                                                                                      3. 30<\/li>\n
                                                                                                                                                      4. 40<\/li>\n<\/ol>\n

                                                                                                                                                        Answer:<\/strong> 2. 20<\/p>\n

                                                                                                                                                        Question 76. In which of the following stages, chromosomes are arranged at the equatorial plate?<\/strong><\/p>\n

                                                                                                                                                          \n
                                                                                                                                                        1. Anaphase<\/li>\n
                                                                                                                                                        2. Metaphase<\/li>\n
                                                                                                                                                        3. Prophase<\/li>\n
                                                                                                                                                        4. Telophase<\/li>\n<\/ol>\n

                                                                                                                                                          Answer:<\/strong> 2. Metaphase<\/p>\n

                                                                                                                                                          Question 77. During mitosis, the number of chromosomes gets<\/strong><\/p>\n

                                                                                                                                                            \n
                                                                                                                                                          1. Changed<\/li>\n
                                                                                                                                                          2. No change<\/li>\n
                                                                                                                                                          3. May be changed if cell is mature<\/li>\n
                                                                                                                                                          4. May be changed if cell is immature<\/li>\n<\/ol>\n

                                                                                                                                                            Answer<\/strong>: 2. No change<\/p>\n

                                                                                                                                                            Question 78. In meiosis, chromosome number becomes<\/strong><\/p>\n

                                                                                                                                                              \n
                                                                                                                                                            1. Half of its parent chromosome<\/li>\n
                                                                                                                                                            2. Same as that of the parent chromosome<\/li>\n
                                                                                                                                                            3. One-fourth of its parent chromosome<\/li>\n
                                                                                                                                                            4. None of the above<\/li>\n<\/ol>\n

                                                                                                                                                              Answer:<\/strong> 2. Same as that of parent chromosome<\/p>\n

                                                                                                                                                              Question 79. Which one of the following precedes the reformation of the nuclear envelope during the M phase of the cell cycle?<\/strong><\/p>\n

                                                                                                                                                                \n
                                                                                                                                                              1. Transcription from chromosomes and reassembly of the nuclear lamina<\/li>\n
                                                                                                                                                              2. Formation of the contractile ring and formation of the phragmoplast<\/li>\n
                                                                                                                                                              3. Formation of the contractile ring and transcription from chromosome<\/li>\n
                                                                                                                                                              4. Decondensation from chromosomes and reassembly of the nuclear lamina<\/li>\n<\/ol>\n

                                                                                                                                                                Answer:<\/strong> 1. Transcription from chromosomes and reassembly of the nuclear lamina<\/p>\n

                                                                                                                                                                Question 80. Crossing over that results in genetic recombination in higher organisms occurs between<\/strong><\/p>\n

                                                                                                                                                                  \n
                                                                                                                                                                1. Non-sister chromatids of a bivalent<\/li>\n
                                                                                                                                                                2. Two daughter nuclei<\/li>\n
                                                                                                                                                                3. Two different bivalents<\/li>\n
                                                                                                                                                                4. Sister chromatids of a bivalent<\/li>\n<\/ol>\n

                                                                                                                                                                  Answer:<\/strong> 2. Two daughter nuclei<\/p>\n

                                                                                                                                                                  Question 81. In the somatic cell cycle<\/strong><\/p>\n

                                                                                                                                                                    \n
                                                                                                                                                                  1. DNA replication takes place in S-phase<\/li>\n
                                                                                                                                                                  2. A short interphase is followed by a long mitotic phase<\/li>\n
                                                                                                                                                                  3. G2<\/sub> phase follows the mitotic phase<\/li>\n
                                                                                                                                                                  4. In G1<\/sub> phase, DNA content is double the amount of DNA present in the original cell<\/li>\n<\/ol>\n

                                                                                                                                                                    Answer:<\/strong> 1. DNA replication takes place in S-phase<\/p>\n

                                                                                                                                                                    Question 82. When synapsis is complete all along the chromosome, the cell is said to have entered a stage called<\/strong><\/p>\n

                                                                                                                                                                      \n
                                                                                                                                                                    1. Zygotene<\/li>\n
                                                                                                                                                                    2. Pachytene<\/li>\n
                                                                                                                                                                    3. Diplotene<\/li>\n
                                                                                                                                                                    4. Diakinesis<\/li>\n<\/ol>\n

                                                                                                                                                                      Answer:<\/strong> 1. Zygotene<\/p>\n

                                                                                                                                                                      Question 83. Many cells function properly and divide mitotically though they do not have<\/strong><\/p>\n

                                                                                                                                                                        \n
                                                                                                                                                                      1. Plasma membrane<\/li>\n
                                                                                                                                                                      2. Cytoskeleton<\/li>\n
                                                                                                                                                                      3. Mitochondria<\/li>\n
                                                                                                                                                                      4. Plastids<\/li>\n<\/ol>\n

                                                                                                                                                                        Answer:<\/strong> 2. Cytoskeleton<\/p>\n

                                                                                                                                                                        Question 84. At what stage of the cell cycle are histone proteins synthesized in a eukaryotic cell?<\/strong><\/p>\n

                                                                                                                                                                          \n
                                                                                                                                                                        1. During telophase<\/li>\n
                                                                                                                                                                        2. During S phase<\/li>\n
                                                                                                                                                                        3. During G2<\/sub> stage of prophase<\/li>\n
                                                                                                                                                                        4. During entire prophase<\/li>\n<\/ol>\n

                                                                                                                                                                          Answer:<\/strong> 4. During the entire prophase<\/p>\n

                                                                                                                                                                          Question 85. Synapsis occurs between<\/strong><\/p>\n

                                                                                                                                                                            \n
                                                                                                                                                                          1. Two homologous chromosomes<\/li>\n
                                                                                                                                                                          2. A male and a female gamete<\/li>\n
                                                                                                                                                                          3. mRNA and ribosomes<\/li>\n
                                                                                                                                                                          4. Spindle fibers and centromere<\/li>\n<\/ol>\n

                                                                                                                                                                            Answer:<\/strong> 2. A male and a female gamete<\/p>\n

                                                                                                                                                                            Question 86. Shows a schematic breakup of the phases\/stages of the cell cycle.<\/strong><\/p>\n

                                                                                                                                                                            \"NEET<\/p>\n

                                                                                                                                                                            Answer:<\/strong> 3<\/p>\n

                                                                                                                                                                            Question 87. Which one of the following is the correct indication of the state\/phase in the cell cycle?<\/strong><\/p>\n

                                                                                                                                                                              \n
                                                                                                                                                                            1. 1\u2014Cytokinesis<\/li>\n
                                                                                                                                                                            2. 2\u2014Metaphse<\/li>\n
                                                                                                                                                                            3. 3\u2014Karyokinesis<\/li>\n
                                                                                                                                                                            4. 4\u2014Synthetic phase<\/li>\n<\/ol>\n

                                                                                                                                                                              Answer:<\/strong> 4. 4\u2014Synthetic phase<\/p>\n

                                                                                                                                                                              Question 88. During mitosis, ER and nucleolus begin to disappear at<\/strong><\/p>\n

                                                                                                                                                                                \n
                                                                                                                                                                              1. Late prophase<\/li>\n
                                                                                                                                                                              2. Early metaphase<\/li>\n
                                                                                                                                                                              3. Late metaphase<\/li>\n
                                                                                                                                                                              4. Early prophase<\/li>\n<\/ol>\n

                                                                                                                                                                                Answer:<\/strong> 1. Late prophase<\/p>\n

                                                                                                                                                                                Question 89. Which stages of cell division represent, respectively?<\/strong><\/p>\n

                                                                                                                                                                                \"NEET<\/p>\n

                                                                                                                                                                                  \n
                                                                                                                                                                                1. Metaphase\u2014Telophase<\/li>\n
                                                                                                                                                                                2. Telophase\u2014Metaphase<\/li>\n
                                                                                                                                                                                3. Late anaphase\u2014Prophase<\/li>\n
                                                                                                                                                                                4. Prophase\u2014Anaphase<\/li>\n<\/ol>\n

                                                                                                                                                                                  Answer:<\/strong> 3. Late anaphase\u2014Prophase<\/p>\n

                                                                                                                                                                                  Question 90. During gamete formation, the enzyme recombinase participates during<\/strong><\/p>\n

                                                                                                                                                                                    \n
                                                                                                                                                                                  1. Anaphase-2<\/li>\n
                                                                                                                                                                                  2. Prophase-1<\/li>\n
                                                                                                                                                                                  3. Prophase-3<\/li>\n
                                                                                                                                                                                  4. Metaphase-1<\/li>\n<\/ol>\n

                                                                                                                                                                                    Answer:<\/strong> 4. Metaphase-1<\/p>\n","protected":false},"excerpt":{"rendered":"

                                                                                                                                                                                    Cell Cycle And Cell Division Multiple Choice Question and Answers Question 1. The cell cycle of a somatic cell usually consists of all the following except The first part of the interphase is called as G1 phase. During this phase, there is a maximum increase in cell size and there is active synthesis of RNA … Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[214],"tags":[],"_links":{"self":[{"href":"https:\/\/learnupboard.com\/wp-json\/wp\/v2\/posts\/2948"}],"collection":[{"href":"https:\/\/learnupboard.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/learnupboard.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/learnupboard.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/learnupboard.com\/wp-json\/wp\/v2\/comments?post=2948"}],"version-history":[{"count":1,"href":"https:\/\/learnupboard.com\/wp-json\/wp\/v2\/posts\/2948\/revisions"}],"predecessor-version":[{"id":2949,"href":"https:\/\/learnupboard.com\/wp-json\/wp\/v2\/posts\/2948\/revisions\/2949"}],"wp:attachment":[{"href":"https:\/\/learnupboard.com\/wp-json\/wp\/v2\/media?parent=2948"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/learnupboard.com\/wp-json\/wp\/v2\/categories?post=2948"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/learnupboard.com\/wp-json\/wp\/v2\/tags?post=2948"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}