1. In turkeys, bronze body color (B) is dominant over red (b). Normal feathers (N) are dominant over hairy feathers (n). A bronze male turkey is mated to a bronze female, and some of the poults (baby turkeys) produced by this cross are red. What are the genotypes of the male and female parents and the red poults?

2. Some of the poults from the cross described in #1 above are bronze. What proportion of the poults would you expect to have the BB genotype? What proportion would have the Bb genotype? What proportion would have the bb genotype?

3. If you were to cross a BbNn turkey with a bbnn turkey, what proportion of the offspring will have red, normal feathers? What proportion will have bronze hairy feathers? red, hairy feathers? bronze, normal feathers?

4. Corn snakes (Elaphe guttata) are elegant creatures that are completely harmless to humans. Typical corn snakes have an attractive pattern of black spots on an orange background. However, some corn snakes have no black anywhere on their bodies, and look orange all over. Suppose you crossed an orange-and-black spotted snake with a solid orange snake and found that all the babies had orange and black spots. This would mean that the black-spotted allele was ___ to the non-black allele.

5. There are also corn snakes that never have any orange color on their bodies. These snakes may or may not have black spots, but the background color is nearly white, not orange. The orange allele is dominant to the white allele. If you found a corn snake that was white with black spots, what could its genotype be?

6. Suppose you crossbred two corn snakes that both had the genotypes OoSs. What proportion of the babies would be white all over (with no black spots)?

7. In parrots, gray color (G) is dominant over green (g). A second gene determines how dark the base color is (whatever the base color is: gray, green, or something else). The dark allele (D) is incompletely dominant over the light (d) allele, so that a bird with the Dd genotype has a medium-intensity color. What would a bird look like that had the genotype ggDD? What would a bird with the genotype GgDd look like? What genotype(s) would a light green bird have?

8. If you mated a light green parrot with a purebred dark gray parrot, what would the babies look like?

9. CHALLENGE PROBLEM. Suppose you took two of the baby parrots from the cross mentioned in question #8, and you crossbred them. How many kinds of offspring would you get, and in what proportions?