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).Cross a homozygous black,rough,short-haired Guinea pig and a white,smooth,long-haired one.What would the phenotype(s)of the offspring be? If two of the F1 offspring were crossed,what would the