In a bivalent,the number of non-sister chroma | vedclass

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(B) bivalent consists of a homologous pair of chromosomes,which contains a total of $4$ chromatids. During meiosis,crossing over occurs between two no

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(B) bivalent consists of a homologous pair of chromosomes,which contains a total of $4$ chromatids. During meiosis,crossing over occurs between two non-sister chromatids of the homologous pair. Since there are $4$ chromatids in total and crossing over involves only $2$ non-sister chromatids,the remaining $2$ non-sister chromatids do not participate in the crossing over process. Therefore,the number of non-sister chromatids that do not undergo crossing over is $2$.

List-$I$	List-$II$
$a$. Zygotene	$i$. Terminalization
$b$. Pachytene	$ii$. Chiasmata
$c$. Diplotene	$iii$. Crossing over
$d$. Diakinesis	$iv$. Synapsis

In a bivalent,the number of non-sister chromatids that do not undergo crossing over is .......

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Match the following stages of meiosis with their respective events:

List-$I$ List-$II$

$a$. Zygotene $i$. Terminalization

$b$. Pachytene $ii$. Chiasmata

$c$. Diplotene $iii$. Crossing over

$d$. Diakinesis $iv$. Synapsis

Select the correct option: $a \quad b \quad c \quad d$

In which stage are the chromosomes long and thin?

What is a chiasmata?

In which cells does meiosis occur?

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