Answered

The colors of human hair and eyes are each controlled by two or more genes.



Which term correctly identifies this type of inheritance?


Apolygenic traits
Bcodominance
Cincomplete dominance

Verified Answer :

Final answer:

The inheritance of hair and eye color in humans is an example of polygenic traits, where multiple genes influence the characteristics. Codominance and incomplete dominance describe different genetic interactions but do not apply to these traits. Thus, the correct answer is polygenic traits.


Explanation:

Understanding Polygenic Traits

Human hair and eye colors are examples of traits that are influenced by multiple genes, a concept known as polygenic inheritance. This means that instead of a single gene determining the expression of a trait, several genes contribute to the phenotype. For instance, variations in multiple genes can produce a wide range of hair colors from blonde to brown to black, as well as various eye colors.

In contrast, codominance occurs when two different alleles are expressed equally in the phenotype, like in AB blood type. Meanwhile, incomplete dominance refers to a situation where the phenotype is a blend of the two alleles, such as red and white flowers producing pink offspring. Therefore, the correct term that describes the inheritance of hair and eye color is polygenic traits.


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