In Guinea pigs, black hair (B) is dominant over white (b), rough coat texture (R) is dominant over smooth (r), and short hair

Question

In Guinea pigs, black hair (B) is dominant over white (b), rough coat texture (R) is dominant over smooth (r), and short hair (S) is dominant over long hair (s). Assume these genes are on separate chromosomes. 
a For a cross between a homozygous black, rough, short-haired Guinea pig and a white, smooth, long-haired one, what would the phenotype(s) of the offspring (F₁) be? 
b If two of the F, offspring were crossed, what would be the probability of getting a black, rough, short-haired pig in the F₂ generation?

Kunduz · Accepted Answer

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