Explain how meiosis contributes to genetic variation.

Meiosis contributes to genetic variation by producing genetically diverse gametes through specific processes during cell division.

One major mechanism is crossing over, which occurs during prophase I of meiosis. In this process, homologous chromosomes exchange segments of genetic material, creating new combinations of genes.

Another mechanism is independent assortment, where chromosomes are distributed randomly into gametes. This results in different combinations of maternal and paternal chromosomes in each gamete.

Additionally, random fertilization further increases variation, as any male gamete can fuse with any female gamete, producing unique genetic combinations in offspring.

These processes ensure that no two gametes are identical, leading to variation among individuals of the same species.

Thus, meiosis plays a key role in generating genetic diversity, which is essential for evolution and adaptation.