Assertion : During zygotene,chromosomes show | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) During the zygotene stage of Prophase-$I$ of meiosis,homologous chromosomes undergo pairing,a process known as synapsis.Each pair of homologous ch

Vedclass · Accepted Answer

If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.

Vedclass · Answer

(A) During the zygotene stage of Prophase-$I$ of meiosis,homologous chromosomes undergo pairing,a process known as synapsis.Each pair of homologous chromosomes is referred to as a bivalent or a tetrad.Because the homologous chromosomes pair up,the number of observable units (bivalents) is half the original diploid number of chromosomes $(2n)$.Therefore,the Assertion is correct as chromosomes appear as bivalents,and the Reason is also correct as it accurately describes the numerical reduction of observable chromosomal units during this stage.

Assertion : During zygotene,chromosomes show bivalent stage.
Reason : Bivalent is half the number of chromosomes.

Similar Questions

$A$ diploid cell which has $8$ chromosomes undergoes meiosis and produces $4$ daughter cells. What is the number of chromosomes present in each daughter cell formed at the end of meiosis-$I$?

Which of the following is known as reductional division?

$A$: In the diplotene sub-stage,the two chromosomes of a homologous pair move away from each other.
$R$: The connection is maintained at the site where crossing over has occurred in homologous chromosomes.

Identify the figure:

In the given figure,which phase is represented by the part labeled $M$?

Vedclass Test Series

Exam Paper Generator

Online Exam Module

Assertion : During zygotene,chromosomes show bivalent stage.Reason : Bivalent is half the number of chromosomes.