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NEETBotanyCell Cycle and Cell Division

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

Options

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

Correct answer

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

Step-by-step solution

The correct chronological sequence of events corresponds to the five substages of prophase I in meiosis I: Leptotene, Zygotene, Pachytene, Diplotene, and Diakinesis. (C) Compaction of chromosomes occurs during leptotene. (E) Formation of synapsis takes place during zygotene. (A) Appearance of recombination nodules is a characteristic feature of pachytene. (B) Dissolution of the synaptonemal complex marks the beginning of diplotene. (D) Terminalisation of chiasmata occurs during diakinesis. Therefore, the correct or

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