Tiêu đề CELL CYCLE AND CELL DIVISION (KCET Questions) 2025-09-13.pdf ✅

(3) Karyokinesis and cytokinesis occurs at the same time (4) There is no specific rule 10. How many times does the DNA replicates in one cell cycle? (1) Once (2) Twice (3) Many times (4) Not at all 11. Identify the meiotic stage in which the homolo‐ gous chromosomes separate while the sister chro‐ matids remain associated at their centromeres. (1) Metaphase I (2) Metaphase II (3) Anaphase I (4) Anaphase II 12. Which of the following statement is not true for homologous chromosome pairs? (1) They come from only one of the individual's parents. (2) They usually contain slightly different ver‐ sions of the same genetic information. (3) They segregate from each other during meio‐ sis I. (4) They synapse during meiosis I. 13. During anaphase-I of meiosis (1) Homologous chromosomes separate (2) Non-homologous autosomes separate (3) Sister chromatids separate (4) Non-sister chromatids separate 14. Which statement is correct for meiosis? (1) Meiosis I is reduction division (2) Meiosis II is reduction division (3) Meiosis I - equational and II -reduction divisions (4) Meiosis I and II both are equational divisions 15. During anaphase-I (1) Sister chromatids get separated (2) Homologous chromosomes get separated (3) Both are correct (4) None are correct 16. Prophase I is divided into 5 phases based on the______ (1) Cytoplasmic behaviour (2) Nucleolar behaviour (3) Nuclear behaviour (4) Chromosomal behaviour 17. Match the columns I and II and choose the correct option. Column I Column II A. zygotene P. Chromosomes become gradually visible under the light microscope B. Leptotene Q. Chromosomes start pairing together C. Diplotene R. Four chromatids of each bivalent chromosomes becomes distinct and clearly appears as tetrads D. Pachytene S. Dissolution of the synaptonemal complex (1) A-Q, B-S, C-R, D-P (2) A-S, B-P, C-Q, D-R (3) A-Q, B-P, C-S, D-R (4) A-P, B-Q, C-R, D-S 18. Splitting of centromere and hence separation of chromatids occurs during (1) Prophase-II (2) Anaphase-I (3) Anaphase-II (4) Metaphase-II 19. Diploid cells can divide by (1) Meiosis (2) Mitosis only (3) Both meiosis and mitosis. (4) None of these 20. At metaphase, chromosomes are attached to the spindle fibres by their (1) Satellites (2) Secondary constriction (3) Kinetochores (4) Centromeres 21. Meiosis in plants occurs in (1) Root apex (2) Ovules (3) Anther (4) 2 and 3 22. Cross-like configuration when non-sister chro‐ matids of a bivalent comes in contact during the meisosis- I are (1) Chiasmata (2) Bivalents (3) Synapsis (4) 1 and 3 23. The complex formed by a pair of synapsed ho‐ mologous chromosomes is called,