Bmaa04 Bmaa04 16-03-2021 Biology contestada Which description best contrasts meiosis and mitosis? Meiosis occurs during sexual reproduction, whereas mitosis occurs during cell reproduction. Meiosis involves the duplication of cells, whereas mitosis involves the growth of cells. Meiosis happens in most animals, whereas mitosis only happens in humans. Meiosis repairs old cells, whereas mitosis encourages new cells to grow.