Question

When does crossing over occur in cellular reproduction?

Answer 1

Crossing over occurs in pachytene.

Explanation:

The crossing over is an important event in the meiotic division. It occurs in the pachytene sub-stage of the meiotic division-1. The homologous chromosomes exchange the segments of the genes and helps in the process of recombination. The recombine genes produce variations in the species finally leads to natural selection. Thank you