explain briefly the prophase 1 of meiosis with suitable diagram?
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During prophase I, they coil and become shorter and thicker and visible under the light microscope. The duplicated homologous chromosomes pair, and crossing-over (the physical exchange of chromosome parts) occurs. ... The nuclear envelope disappears at the end of prophase I, allowing the spindle to enter the nucleus.During this phase of meiosis, chromosomes become visible, crossing-over occurs, the nucleolus disappears, the meiotic spindle forms, and the nuclear envelope disappears. At the start of prophase I, the chromosomes have already duplicated.
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Prophase 1 of meiosis is the first stage of meiosis. It has 5 different phases: Leptotene, Zygotene, Pachytene, Diplotene and Diakinesis. Leptotene is the first phase of prophase 1. ... Zygotene is the substage in which synapsis between homologous chromosome occurs.
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