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Question

Lampbrush chromosomes are found in

A
Salivary glands of Drosophila
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B
Salivary glands of silk moth
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C
Oocytes of frog
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D
Nucleus of man
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Solution

The correct option is A Oocytes of frog
Lampbrush chromosomes are present in the nuclei of oocyte of vertebrates such as pisces, amphibians, reptiles and birds. They are absent in mammals. These are the largest chromosomes characterized by the presence of loops having a brushy appearance. These chromosomes are involved in DNA and yolk material synthesis. Thus the correct answer is option C.

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