Final answer:
The random alignment of homologous chromosomes during metaphase I of meiosis contributes to genetic diversity in gametes.
Step-by-step explanation:
The random alignment of homologous chromosomes during metaphase I of meiosis contributes to genetic diversity in gametes. During metaphase I, homologous chromosomes line up randomly at the equator of the cell. This random alignment results in the independent assortment of chromosomes, meaning that each gamete will receive a unique combination of chromosomes, increasing the variability of the genetic information in the gametes.