Polytene chromosomes in salivary glands of Drosophila are formed as a result of

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4.Principles of Inheritance and Variation

normal

Polytene chromosomes in salivary glands of Drosophila are formed as a result of

A

Endoduplication

B

Duplication without separation

C

Replication of $DNA$ without cell division

D

All the above

Solution

(d)The chromosome is formed by somatic pairs between homologous chromosomes and repeated replication or endomitosis of chromonemata.

Standard 12

Biology

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