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Formation of bivalents during Meiosis-I occurs at:
Question

Formation of bivalents during Meiosis-I occurs at:

A.

Leptotene stage

B.

Diplotene stage

C.

Pachytene stage

D.

Zygotene stage

Correct option is D

Zygotene stage is where synapsis begins and homologous chromosomes pair to form bivalents.
This stage precedes crossing over, which occurs in the pachytene stage.

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