Question

humans can have many different eye colors, but the most common is brown. scientists have found that there are numerous genes that code for eye color. which pattern of inheritance does this example best describe? a. sex - linked traits b. recessive inheritance c. codominance d. polygenic inheritance

Explanation:

• Sex - linked traits: Traits determined by genes on sex chromosomes. Eye - color inheritance in this case is not related to sex - chromosome - specific genes in the way described (many genes, not sex - linked).
• Recessive inheritance: Involves a single gene where a recessive allele is masked by a dominant allele. Here, it's about multiple genes, not a single - gene recessive - dominant relationship.
• Codominance: Occurs when two alleles are both expressed. This is about multiple genes, not two alleles of a single gene.
• Polygenic inheritance: Defined as a trait (like eye color here) being controlled by multiple genes.

Answer:

D. Polygenic inheritance