Lampbrush chromosomes found in oocytes occur in

Leptotene

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Zygotene

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Pachytene

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Diplotene

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Solution

The correct option is D Diplotene
Lampbrush chromosomes are also called diplotene chromosomes because they are formed during the diplotene stage of prophase1 of meiosis cell division due to the active transcription of many genes.
They are a special type of chromosome found in the developing oocytes of most animals (except mammals).
So, the correct answer is 'Diplotene'.

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