(C) Chiasmata are $X$-shaped structures that form between non-sister chromatids of homologous chromosomes during meiosis.These sites represent the loc

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(C) Chiasmata are $X$-shaped structures that form between non-sister chromatids of homologous chromosomes during meiosis.These sites represent the locations where crossing over occurs,which involves the exchange of genetic material between homologous chromosomes.Therefore,the correct option is $C$.

Class 11 Biology Cell Cycle and Cell Division Meiosis

Easy

Chiasma shows the sites of

A
Spindle formation
B
Synapsis
C
Crossing over
D
None of these

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Class 11 Questions

Class 11

Biology Questions

Chapter

Cell Cycle and Cell Division

Subtopic

Meiosis

Exchange of chromosome segments between maternal and paternal chromatids during synapsis in meiosis is called

Easy

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Which of the following processes does not occur in mitosis?

Medium

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Match the following columns $I$ and $II$ correctly:

Column $I$ Column $II$

$A$. Leptotene $i$. Nucleolus disappears

$B$. Zygotene $ii$. Formation of recombination nodules

$C$. Pachytene $iii$. Development of synapsis

$D$. Diplotene $iv$. Chromosomes appear as thread-like structures

$E$. Diakinesis $v$. Gene exchange occurs via chiasmata

Column $I$	Column $II$
$A$. Leptotene	$i$. Nucleolus disappears
$B$. Zygotene	$ii$. Formation of recombination nodules
$C$. Pachytene	$iii$. Development of synapsis
$D$. Diplotene	$iv$. Chromosomes appear as thread-like structures
$E$. Diakinesis	$v$. Gene exchange occurs via chiasmata