polygenic traits are determined by multiple genes received from each parent. complete explain why polygenic…

Brief Explanations:

Polygenic traits are influenced by multiple genes. In the case of skin - color, different combinations of alleles from multiple gene loci contribute to a range of pigmentation levels. Each gene may have an additive effect on the trait. For example, more "dark - skin" alleles from different genes result in darker skin, while fewer of these alleles lead to lighter skin, creating a continuous quantitative variation.

Answer:

Polygenic traits are expressed through quantitative variation because multiple genes contribute to the trait. In skin color, different combinations of alleles at multiple gene loci lead to a range of pigmentation levels, with each gene having an additive effect on the overall trait.