When a female bird chooses a mate because of his brightly colored feathers, this is an example of

a) random mating, which maintains equilibrium in the gene pool.

b) sexual selection, which alters allele frequencies in the gene pool.

c) artificial selection, which alters allele frequencies in the gene pool.

d) natural selection, which maintains equilibrium in the gene pool.

The diagram shows the results when two parents are crossed. the letters represent alleles for a trait that is controlled by three different genes. which best describes this inheritance pattern? multiple allele because a trait is controlled by three different genes polygenic because the offspring have alleles from both parents multiple allele because the offspring have alleles from both parents polygenic because a trait is controlled by three different genes