Meiosis, Germ Cells, and Fertilization
Meiosis, Germ Cells, and Fertilization
Meiosis, Germ Cells, and Fertilization
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During dividing prophase I<br />
• Leptotene<br />
– homologs condense <strong>and</strong> pair, <strong>and</strong> genetic recombination begins<br />
• Zygotene<br />
– synaptonemal complex begins to assemble in local regions along the<br />
homologs<br />
• Pachytene<br />
– the homologs are synapsed along their entire lengths<br />
• Diplotene<br />
– disassembly of the synaptonemal complexes<br />
– concomitant condensation, shortening of chromosomes.
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