How is the action of natural selection similar for single-gene and polygenic traits? How is it different?

Natural selection can cause microevolution (change in allele frequencies), with fitness-increasing alleles becoming more common in the population. ... Natural selection can act on traits determined by alternative alleles of a single gene, or on polygenic traits (traits determined by many genes).

Explanation:

Answer Link

pstnonsonjoku pstnonsonjoku · Answer 2 · 2021-12-04T07:06:51+01:00

Natural selection leads to changes in allele frequency and phenotype.

Natural selection refers to the fact that organisms that are better adapted to their environment live longer and are able to reproduce thereby propagating their favorable traits in the population.

For a single gene trait, natural selection does lead to changes in allele frequency and phenotype. For polygenic traits, natural selection leads to the following;

directional selection
stabilizing selection
disruptive selection.

Learn more: https://brainly.com/question/7558603