Select the correct statements. A. Tetrad formation is seen during Leptotene. B. During Anaphase, the centromeres split and chromatids separate. C. Terminalization takes place during Pachytene. D. Nucleolus, Golgi complex and ER are reformed during Telophase. E. Crossing over takes place between sister chromatids of homologous chromosome. Choose the correct answer from the options given below:
Answer: (B) B and D only. Answer: B and D only Solution: During anaphase the centromeres split and chromatids separate (B correct), and during telophase the nucleolus, golgi complex and ER reform (D correct).
- A.A and C only
- B.B and D only✓
- C.C, A and E only
- D.B and E only
Correct Answer
(B) B and D only
Solution & Explanation
Answer: B and D only Solution: During anaphase the centromeres split and chromatids separate (B correct), and during telophase the nucleolus, golgi complex and ER reform (D correct). A is wrong because tetrads/bivalents form at zygotene-pachytene, not leptotene; C is wrong because terminalisation of chiasmata occurs at diakinesis (diplotene onwards), not pachytene; E is wrong because crossing over occurs between non-sister chromatids of homologous chromosomes, not sister chromatids. NCERT Reference: Ch 10, p.124, lines 5 and 23 — "Centromeres split and chromatids separate" ... "Nucleolus, golgi complex and ER reform"