How Do Meiosis I and Ii Contribute to Genetic Variation

• mutation.
• random mating between organisms.
• random fertilization.
• crossing over (or recombination) between chromatids of homologous chromosomes during meiosis.

How does meiosis contribute to genetic variation while mitosis does not?

Assess how meiosis contributes to genetic variation, while mitosis does not. During meiosis, the independent assortment of the pairs of chromosomes and crossing over provide a large amount of genetic variation. Mitosis produces identical cells.

How do meiosis I and meiosis II differ quizlet?

How do meiosis I and meiosis II differ? Meiosis I divides homologous chromosomes, whereas meiosis II divides sister chromatids. Meiosis I is preceded by DNA replication, whereas meiosis II is not preceded by replication.