What is the significance of crossing over and when does it occur??

Expert Solution

Crossing over: It is the phenomenon of exchange of genetic material between sister chromatids of homologous chromosomes. It occurs during the pachytene stage of meiotic prophase-I.

It is responsible for

i. Creating genetic variation

ii. Mixing of maternal and paternal genomes

iii. Evolution

iv. Creation of recombinants

gladiator answered 2 years ago

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