Humans produce skin cells by mitosis and gametes by meiosis. the nuclei of skin cells produced by mitosis will have
a) half as much dna as the nuclei of gametes produced by meiosis.
b) the same amount of dna as the nuclei of gametes produced by meiosis.
c) twice as much dna as the nuclei of gametes produced by meiosis.
d) four times as much dna as the nuclei of gametes produced by meiosis.

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

Explanation:

The somatic cells are diploid cells, which means, carries two copies of each chromosome. Gametes (eggs and sperm) are haploid cells, which means they only carry one copy of each chromosome, it means, they posses half the genetic information of any somatic cell, like skin cells.

it provides an alternative energy pathway for the reaction to proceed.

a catalyst is a substance that speeds up the rate of a chemical reaction but is not consumed during the course of the reaction.

catalysts increase the rate of reaction without being used up. they do this by lowering the activation energy needed. with a catalyst, more collisions result in a reaction, so the rate of reaction increases. different reactions need different catalysts.

a catalyst works by providing an alternative reaction pathway to the reaction product. the rate of the reaction is increased as this alternative route has a lower activation energy than the reaction route not mediated by the catalyst.