Polytene chromosomes in salivary glands are f | vedclass

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(D) Polytene chromosomes are giant chromosomes found in the salivary glands of Drosophila larvae and some other Dipteran insects.They are formed throu

Vedclass · Accepted Answer

Homologous chromosomes

Vedclass · Answer

(D) Polytene chromosomes are giant chromosomes found in the salivary glands of Drosophila larvae and some other Dipteran insects.They are formed through a process called endoreduplication,where the $DNA$ undergoes multiple rounds of replication without cell division.These replicated chromatids remain attached to each other side-by-side,a process known as somatic pairing.This pairing occurs specifically between homologous chromosomes,resulting in a bundle of many parallel chromatids.

Column-$I$	Column-$II$
$P$. Metacentric	$I$. One arm shorter and one arm longer
$Q$. Sub-metacentric	$II$. One arm extremely short and one arm extremely long
$R$. Acrocentric	$III$. Terminal centromere
$S$. Telocentric	$IV$. Middle centromere forming two equal arms

Polytene chromosomes in salivary glands are formed by the pairing of:

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