If there are 30 chromosomes in G_1 phase,then | vedclass

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(B) In the $G_1$ phase,the number of chromosomes is $2n = 30$. During the $S$ phase,$DNA$ replication occurs,but the number of chromosomes remains the

Vedclass · Accepted Answer

$15$

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(B) In the $G_1$ phase,the number of chromosomes is $2n = 30$. During the $S$ phase,$DNA$ replication occurs,but the number of chromosomes remains the same $(2n = 30)$. In the zygotene stage of Prophase-$I$ of meiosis,homologous chromosomes pair up to form bivalents (or tetrads). The number of bivalents is equal to half the number of chromosomes,which is $n$. Therefore,the number of bivalents = $30 / 2 = 15$.

If there are $30$ chromosomes in $G_1$ phase,then what will be the number of bivalents in the zygotene stage?

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