Which one of the following is correct sequence of stages of prophase 1 of meiosis
Correct answer: C. Leptotene zygotene pachytene diplotene diakinesis
- A. Diakinesis diplotene pachytene leptotene zygotene
- B. Zygotene leptotene pachytene diplotene diakinesis
- C. Leptotene zygotene pachytene diplotene diakinesis
- D. Pachytene leptotene diplotene zygotene diakinesis
Explanation
The five substages of prophase I occur in the order leptotene, zygotene, pachytene, diplotene and diakinesis. Pairing begins in zygotene, crossing over occurs during pachytene, and chromosomes become maximally condensed by diakinesis. Students may choose option b because zygotene is associated with pairing, but leptotene comes first.
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