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.