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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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