Question

Epistasis is observed when the allele of one gene masks the effects of another gene. Use the Punnett square to answer the question.What color would a dog's fur be if its genes are aabb?A. yellowB. brownC. blackD. white

Answer 1

Based on Punnett's square, it will be black if both A and B are dominant. A dominant A but recessive B is a brown color while a dominant B but recessive A is a yellow color. So for aabb, the color is white. Since it carries both A and B recessive genes.