Question

humans produce skin cells by mitosis and gametes by meiosis. the nuclei of skin cells produced by mitosis will have... four times as much dna as the nuclei of gametes produced by meiosis. half as much dna as the nuclei of gametes produced by meiosis. the same amount of dna as the nuclei of gametes produced by meiosis. twice as much dna as the nuclei of gametes produced by meiosis.

Explanation:

• Skin cells are somatic cells. In humans, somatic cells are diploid (\(2n\)). Mitosis produces daughter cells with the same chromosome number and DNA content as the parent cell. So skin cells produced by mitosis are diploid.
• Gametes are produced by meiosis. Meiosis reduces the chromosome number by half. Human gametes are haploid (\(n\)).
• If diploid (\(2n\)) is compared to haploid (\(n\)), the diploid (skin - cell - like after mitosis) has twice as much DNA as the haploid (gamete - like after meiosis).

Answer:

twice as much DNA as the nuclei of gametes produced by meiosis.