When a pair of homologous chromosomes (bivale | vedclass

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Question

(D) bivalent is a pair of homologous chromosomes formed during the $Zygotene$ stage of $Prophase-I$ of meiosis.Each chromosome in the pair consists of

Vedclass · Accepted Answer

$Both (b) and (c)$

Vedclass · Answer

(D) bivalent is a pair of homologous chromosomes formed during the $Zygotene$ stage of $Prophase-I$ of meiosis.Each chromosome in the pair consists of two sister chromatids.Since a bivalent consists of two homologous chromosomes,and each chromosome has two chromatids,the total number of chromatids in a bivalent is $2 	imes 2 = 4$.These four chromatids are collectively referred to as a tetrad.Therefore,a bivalent consists of two chromosomes,each having two chromatids,resulting in a total of four chromatids.

When a pair of homologous chromosomes (bivalent) is formed,it consists of:

Similar Questions

If there were $4$ chromosomes present during prophase,how many chromosomes are there in each cell at the end of anaphase $II$?

Give the name of the phases of meiosis,in which
$I.$ the chromosome number is reduced to haploid state
$II.$ the amount of $DNA$ is reduced to haploid state
The correct option is

Which of the following stages of meiosis is responsible for deciding the genetic constitution of gametes?

Into how many sub-phases is Prophase-$I$ divided?

During which phase do the pairs of homologous chromosomes align at the equatorial plate of the cell?

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