Which of the following phenotypes is an example of polygenic inheritance? skin pigmentation in humans white and purple flower color in peas the ABO blood system in humans pink offspring resulting from the breeding of white and red flowers

Skin pigmentation in humans

Explanation:

Skin pigmentation is a very common example in polygenic inheritance. This inheritance is represented by two gene pairs: Aa and Bb.

Thus, A and B determine the production of the same amount of melanin pigment and have additive effect. Therefore, there are several shades of color in human skin, according to the amount of genes A and B.

Offspring of parents with one very dark skinned and one very light skinned may give an intermediate skin color. Heterozygous parents for skin color can lead to offspring with darker or lighter skin than their own.