Question

What is the purpose of crossing-over in meiosis?

A.to create mutations in gametes to increase variation
B.to randomly separate homologous chromosome pairs
C.to reduce the number of chromosomes in gametes by one half
D.to create new combinations of DNA on homologous chromosomes

Answer 1

“A” is the correct answer!!!!!!!

Answer 2

A

Step-by-step explanation:

During prophase I of meiosis, crossing over that occurs between non-sister chromatids of homologous chromosomes pairs occurs at chiasma results in the exchange of genetic material. This produces new genetic combinations in gametes leading to variation.