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The five sub-stages of prophase I of meiosis are:

AOnly Pachytene
BLeptotene → Zygotene → Pachytene → Diplotene → Diakinesis
CThree substages
DRandom order
Answer & Solution
Correct answer: B. Leptotene → Zygotene → Pachytene → Diplotene → Diakinesis
**Prophase I substages (LZPDD):** Leptotene (chromosomes condense). Zygotene (synapsis begins). Pachytene (crossing over). Diplotene (synaptonemal complex dissolves. chiasmata visible). Diakinesis (chromosomes maximally condensed. nuclear envelope breaks).
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