Question

Lampbrush chromosomes occur inside

A

Nucleus of human cells

B

Ocytes of Frog/amphibian

C

Salivary glands of drosophila

D

Salivary glands of silk moth

Medium
Solution
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Correct option is B)

  • 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.
  • These chromosomes are seen during the early prophase stage and are bivalent having two conjugating homologues joined at chiasmata.
  • They are a special type of chromosome found in the developing oocytes of most animals (except mammals).
  • So, the correct answer is 'Oocytes of Frog/amphibian'.

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