Question

Humans can have many different eye colors ranging from blue to brown. Which of the statements could explain this array of different eye colors? a. The genes affecting eye color must produce pigments that break down over time. b. In human populations there are many alleles of the genes affecting eye color, not just two. c. The genes affecting eye color must be linked and located near each other on a chromosome. d. Some alleles are dominant in some people and recessive in others.

Answer 1

Answer:

Option (b).

Explanation:

Genes may be defined as the functional segment of DNA that are heritable in nature. Genes are responsible for the genotype and phenotype of the living organisms.

The eye color in case of humans is the example of polygenic inheritance. The eye color is controlled by more than two different genes and not just by the two alleles of a particular gene. The presence of the different alleles in the different individuals determine the eye color.

Thus, the correct answer is option (b).