In the species Cerebrum gigantus, purple eyes (y) are recessive to yellow eyes (Y) and green hair (b) is recessive to blue hair (B). One parent who is homozygous dominant for yellow eyes and heterozygous hair color has found a mate who is homozygous recessive for eye color and is heterozygous for hair color.

a. What are the genotypes of each parent?

b. What is the probability of the offspring having purple eyes?

c. What is the probability of the offspring having green hair?