What is the minimum number of chiasmata forme | vedclass

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(A) bivalent is a pair of homologous chromosomes formed during the prophase-$I$ of meiosis.During the pachytene stage,crossing over occurs between non

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(A) bivalent is a pair of homologous chromosomes formed during the prophase-$I$ of meiosis.During the pachytene stage,crossing over occurs between non-sister chromatids of homologous chromosomes.In the subsequent diplotene stage,the homologous chromosomes begin to separate,but they remain attached at the sites where crossing over occurred.These $X$-shaped attachment points are called chiasmata.For a bivalent to be held together,there must be at least one chiasma formed between the homologous chromosomes.

What is the minimum number of chiasmata formed in a bivalent structure?

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