You purchase a black dog from a pet shop that tells you this animal is a purebred and that they will forward its papers to you at a later date. In this breed, black is dominant to white. You mate the dog with a white dog of the same breed. If the dog you purchased was a purebred animal, what approximate percentages of colors should you see in the offspring?

Question

Quizplus · Accepted Answer

If the black dog is purebred, it is homozygous dominant (BB). Mating it with a white dog, which is homozygous recessive (bb), will result in 100% heterozygous black offspring (Bb).

You Purchase a Black Dog from a Pet Shop That