A) diplotene
B) zygotene
C) leptotene
D) pachytene
Correct Answer: B
Solution :
: Zygotene is marked by the pairing of the homologous chromosomes known as synapsis. Pairing begins at one or more points along the length of the chromosome and then proceeds in a zipper-like fashion aligning the two homologous chromosomes side by side. Each pair is called as a bivalent and it is also called tetrad since each bivalent contains four chromatids.
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