NEET 2023 Phase 1 · BiologyPloidyPrevious Year Question
Which of the following stages of meiosis involves division of centromere?
Answer: (A) Anaphase II. Answer: Anaphase II Solution: The centromere splits only in anaphase II of meiosis, when the sister chromatids separate (meiosis II resembles mitosis).
- A.Anaphase II✓
- B.Telophase II
- C.Metaphase I
- D.Metaphase II
Correct Answer
(A) Anaphase II
Solution & Explanation
Answer: Anaphase II Solution: The centromere splits only in anaphase II of meiosis, when the sister chromatids separate (meiosis II resembles mitosis). In anaphase I, homologous chromosomes separate but sister chromatids stay joined at their centromeres. Metaphase I and II are alignment stages with no centromere division, and telophase II follows the split. NCERT Reference: Ch 10, p.127, lines 22-24 — "Anaphase II: It begins with the simultaneous splitting of the centromere"
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