Describe the following synapses bivalent chrimata
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Meghna Thapar 5 years, 6 months ago
Synapsis (also called syndesis) is the pairing of two homologous chromosomes that occurs during meiosis. It allows matching-up of homologous pairs prior to their segregation, and possible chromosomal crossover between them. Synapsis takes place during prophase I of meiosis. Chiasmata is the point of contact, the physical link, between two (non-sister) chromatids belonging to homologous chromosomes. The chiasmata become visible during the diplotene stage of prophase I of meiosis, but the actual "crossing-overs" of genetic material are thought to occur during the previous pachytene stage.
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