Question

In which stage of meiosis, crossing over taking place?​

Answer 1

Answer:

Crossing over occurs in the first division of meiosis . At that stage each chromosome has replicated into two strands called sister chromatids. The two homologous chromosomes of a pair synapse, or come together. ... Mutations , temperature changes, and radiation all affect crossing over frequency.

Further genetic variation comes from crossing over, which may occur during prophase I of meiosis. In prophase I of meiosis, the replicated homologous pair of chromosomes comes together in the process called synapsis, and sections of the chromosomes are exchanged.