In Rabbits, an Allelic Series Helps to Determine Coat Color

Multiple Choice

In rabbits, an allelic series helps to determine coat color: C (full color) , c^ch (chinchilla; gray color) , c^h (Himalayan; white with black extremities) , and c (albino; all white) . The C allele is dominant to all others, c^ch is dominant to c^h and c, c^h is dominant to c, and c is recessive to all the other alleles. This dominance hierarchy can be summarized as C > c^ch > c^h > c.
- Indicate the phenotypic ratios expected of rabbits with the cross c^chc^h × c^hc.

A) 1 full color : 1 chinchilla
B) 1 full color : 1 Himalayan
C) 1 chinchilla : 1 Himalayan
D) 3 full color : 1 chinchilla
E) 2 full color : 1 Himalayan : 1 albino