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NEETBotanyCell Cycle and Cell Division

Arrange the following events of meiosis in the correct chronological sequence: (A) Formation of recombination nodules (B) Terminalisation of chiasmata (C) Formation of synaptonemal complex (D) Initial compaction of chromosomes (E) Dissolution of synaptonemal complex Choose the correct answer from the options given below:

Options

  1. A(D), (A), (C), (E), (B)
  2. B(D), (C), (A), (E), (B)
  3. C(D), (C), (A), (B), (E)
  4. D(B), (E), (A), (C), (D)

Correct answer

B. (D), (C), (A), (E), (B)

Step-by-step solution

The correct chronological sequence of events corresponds to the substages of Prophase-I of meiosis (Leptotene, Zygotene, Pachytene, Diplotene, Diakinesis): 1. Initial compaction of chromosomes (D) occurs during Leptotene. 2. Formation of synaptonemal complex (C) occurs during Zygotene. 3. Formation of recombination nodules (A) occurs during Pachytene. 4. Dissolution of synaptonemal complex (E) marks the beginning of Diplotene. 5. Terminalisation of chiasmata (B) occurs during Diakinesis. Thus, the correct chronolog

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