In guinea pigs,B = black,b = brown,S = short hair,s = long hair.A heterozygous black,short-haired animal reproduces with a brown,long-haired animal.What is the expected phenotypic ratio of the offspring?
A)1 black short hair,1 black long hair,1 brown short hair,1 brown long hair
B)3 black short hair,1 brown long hair,3 black long hair,1 brown short hair
C)9 black short hair,3 black long hair,3 brown long hair,1 brown short hair
D)9 black short hair,3 black long hair,3 brown short hair,1 brown long hair
E)9 black short hair,6 black long hair,3 brown long hair,1 brown short hair

Question

Quizplus · Accepted Answer

The heterozygous black, short-haired animal has the genotype BbSs, and the brown, long-haired animal has the genotype bbss. The possible offspring genotypes are BbSs, Bbss, bbSs, and bbss, leading to a phenotypic ratio of 1 black short hair, 1 black long hair, 1 brown short hair, and 1 brown long hair.

In Guinea Pigs,B = Black,b = Brown,S = Short Hair,s