Q. Crossing over that results in genetic recombination in higher organisms occurs between
A) Sister chromatids of bivalent
B) Non-Sister chromatids of a bivalent
C) Two daughter nuclei
D) Two different bivalents
Explanation
The process of crossing over takes place in pachytene stage of prophase-I of meiosis-I. In this process, some genes of two non-sister chromatids of a bivalent are exchanged.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.