Assume That in Guinea Pigs, Dark Brown Fur (B)is Dominant

Multiple Choice

Assume that in guinea pigs, dark brown fur (B) is dominant to black fur (b) .If you mate a homozygous black guinea pig with a heterozygous brown guinea pig, what proportion of the progeny will be black?

A) none
B) 1/4
C) 1/2
D) 3/4
E) all