In Guinea Pigs, B = Black, B = Brown, S

Multiple Choice

In guinea pigs, B = black, b = brown, S = short hair, s = long hair. A guinea pig heterozygous for both traits is mated with a brown, short-haired guinea pig whose mother had long hair. What phenotypic ratio is expected in the offspring?

A) 9 black long hair, 3 black short hair, 3 brown long hair, 1 brown short hair.
B) 9 black short hair, 6 black long hair, 3 brown long hair, 1 black short hair.
C) 6 black short hair, 1 black long hair, 6 brown short hair, 2 brown long hair.
D) 6 brown short hair, 6 black long hair, 2 brown long hair, 2 black short hair.
E) 1 black short hair, 1 black long hair, 1 brown short hair, 1 brown long hair.