試題詳解

7. Albinism in most animals is an epistatic trait characterized by a lack of melanin pigment in the eyes, skin, and hair. If the allele for albinism is “a”, the allele for brown coat color is “B”, and the allele for red coat color is “b”. Which one of the following could be the most possible result in an albino cow?
(A)Aabb.
(B) aaBB.
(C) aabb.
(D)AaBb.
(E)aaBB and aabb.