Question

skin color in humans has a wide variety of phenotypes. the expression of this trait is caused by more than two genes. what type of inheritance pattern is responsible for this expression?
○ codominance
○ polygenic inheritance
○ incomplete dominance
○ complete dominance

Explanation:

Skin color in humans is a classic example of polygenic inheritance. Polygenic inheritance occurs when multiple genes contribute to the expression of a single trait. In the case of skin color, several genes work together, each contributing a small amount to the overall phenotype. This results in a wide range of skin color variations among individuals. Complete dominance and incomplete dominance typically involve one or two genes where one allele masks (complete dominance) or blends (incomplete dominance) with another allele. Codominance is when both alleles in a heterozygote are fully expressed. But skin color's wide variety due to multiple - gene contribution points to polygenic inheritance.

Answer:

polygenic inheritance