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Question

Which of the following chromosomes are called as diplotene chromosomes?

A
Polytene chromosomes
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B
Super numerary chromosomes
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C
Sex chromosomes
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D
Lamp brush chromosomes
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Solution

The correct option is D Lamp brush chromosomes
Diplotene chromosomes are the lampbrush chromosomes. Lampbrush chromosomes are a special form of chromosome found in the growing oocytes (immature eggs) of most animals, except mammals. Chromosomes transform into the lampbrush form during the diplotene stage of meiotic prophase I due to an active transcription of many genes. They are highly extended meiotic half-bivalents, each consisting of 2 sister chromatids.

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