Question

Name the enzyme involved during crossing over in prophase I in meiosis
I?​

Answer 1

Answer:

Crossing over takes place in meiosis type of cell division.

This event occurs in Pachytene phase of Prophase 1 of Meiosis 1 .

During this event the non sister chromosomes of homologous chromosomes exchange their genes which is responsible for genetic variations .

The enzymes involved in crossing over  1) Recombinase is the major enzyme regulating recombination event  2) Endonuclease  3) Ligase enzyme Endonuclease is responsible for breakage of 2 non-sister chromatids at corresponding sites.

Answer 2

Answer:

Irradiation during the leptotene-zygotene stages of meiosis (that is, prior to the pachytene period in which crossover recombination occurs) was found to increase subsequent chiasma frequency.

Originally