A) pachytene
B) zygotene
C) leptotene
D) diakinesis
Correct Answer: A
Solution :
During pachytene stage, crossing over takes place. It is an exchange of equal segments of non-sister chromatids belonging to two different but homologous chromosomes. The chromosome pair (ie, bivalent) consists of four chromatids and thus crossing over takes place at four stranded stage.You need to login to perform this action.
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