106k views
3 votes
Comparing the cohesions involved in mitosis vs. meiosis, how is it that crossing over only occurs in meiosis vs. mitosis?

User Rinkert
by
8.2k points

1 Answer

7 votes

Final answer:

Crossing over occurs in meiosis but not in mitosis. It increases genetic diversity by creating new combinations of alleles on the resulting chromosomes.

Step-by-step explanation:

In meiosis I, crossing over occurs between nonsister chromatids, leading to the exchange of genetic material. This process is unique to meiosis and does not occur in mitosis. Crossing over is an important event in meiosis as it increases genetic diversity by creating new combinations of alleles on the resulting chromosomes. In mitosis, there is no formation of tetrads or crossing over, which is why it does not result in genetic recombination.

User Medhi
by
8.7k points

Related questions

asked Oct 1, 2024 194k views
Jim Cote asked Oct 1, 2024
by Jim Cote
8.7k points
1 answer
5 votes
194k views
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.