Question

How can mutations in gametes become widespread in the gene pool?

Answer 1

Random, spontaneous mutations constantly generate new alleles in a gene pool, destabilizing genetic equilibrium and creating the potential for adaptation to changing environments. In multicellular organisms, only mutations that affect germ cells become part of the gene pool.

Step-by-step explanation:

Answer 2

They affect the gametes (or genes that, unlike somatic cell mutations, can be passed down to offspring) of each individual or descendant after the original individual who acquired the mutation.