which phhase of meiosis is meant to from tetravalent chromosome from bivalent?
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During meiosis-I, in zygotene phase of prophase-I, the bivalent chromosomes clearly appear as tetrads. Here, the homologous chromosomes align together to form tetrads. These tetrads are also known as bivalents and they undergo recombination in the pachytene stage
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A bivalent is one pair of chromosomes (sister chromatids) in a tetrad. ... This physical attachment allows for alignment and segregation of the homologous chromosomes in the first meiotic division.
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