Meiosis is a type of cell division that reduces the number of chromosomes by half. Meiosis I includes a prolonged prophase (Prophase I) which is divided into several substages: Leptotene, Zygotene, Pachytene, Diplotene, and Diakinesis. Crossing over, the exchange of genetic material between homologous chromosomes, is a critical event during Prophase I.
Crossing over occurs during meiosis at
Asked in WBPSC CS Prelims 2017 · Topic: Cell (Cell Division: Mitosis and Meiosis (Stages and Significance))
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