Genetics: Analysis and Principles 5th Edition by Robert Brooker

تمرين 12

In cocker spaniels, solid coat color is dominant over spotted coat color. If two heterozygous dogs were crossed to each other, what would be the probability of the following combinations of offspring
a. A litter of five pups, four with solid fur and one with spotted fur
b. A first litter of six pups, four with solid fur and two with spotted fur, and then a second litter of five pups, all with solid fur
c. A first litter of five pups, the firstborn with solid fur, and then among the next four, three with solid fur and one with spotted fur, and then a second litter of seven pups in which the firstborn is spotted, the second born is spotted, and the remaining five are composed of four solid and one spotted animal
d. A litter of six pups, the firstborn with solid fur, the second born spotted, and among the remaining four pups, two with spotted fur and two with solid fur.