in Labrador retriever dogs, the dominant gene B determines black coat color and bb prouces brown. A separate gene E, however, shows dominant epistasis over the B and b alleles, resulting in a golden coat color. The recessive e allows expression of B and b. A breeder wants to know the genotypes of her three dogs, so she breeds them and makes note of the offspring of several litters. Determine the genotypes of the three dogs. a. golden female (dog 1) x golden male (dog 2) offspring: 7 golden, 1 black, 1 brown b. black female (dog 3) x golden male (dog 2) offspring: 8 golden, 5 black, 2 brown