Which event contributes to genetic variation within a population?Multiple Choicemitosisasexual reproductioncrossing over during meiosiscytokinesis

The event that contributes to genetic variation within a population is "crossing over during meiosis".

Here's why:

1. Mitosis: This is a process of cell division that results in two genetically identical daughter cells developing from a single parent cell, so it does not contribute to genetic variation.

2. Asexual reproduction: This is a type of reproduction by which offspring arise from a single organism, and inherit the genes of that parent only, so it does not contribute to genetic variation.

3. Crossing over during meiosis: This is a process where homologous chromosomes pair up with each other and exchange different segments of their genetic material to form recombinant chromosomes. This can result in offspring having different combinations of genes from their parents, contributing to genetic variation.

4. Cytokinesis: This is the physical process of cell division, which divides the cytoplasm of a parental cell into two daughter cells. It does not contribute to genetic variation.