In the Mexican Hairless Breed of Dog, the Hairless Condition

Multiple Choice

In the Mexican Hairless breed of dog, the hairless condition is produced by the heterozygous genotype (Hh) . Normal dogs are homozygous recessive (hh) . Puppies homozygous for the H allele are usually born dead. If the average litter size at weaning (after nursing) is six puppies in matings between hairless dogs, what would be the average expected number (not a ratio) of hairless and normal offspring at weaning from matings between hairless and normal dogs?

A) 6 normal dogs and 2 hairless dogs
B) 2 normal dogs and 1 hairless dog
C) 5 normal dogs and 1 hairless dog
D) 3 normal dogs and 3 hairless dogs
E) 4 normal dogs and 4 hairless dogs