試題詳解

10In cats, an X-linked locus is responsible for fur color. There are two known alleles at this locus-one in black fur color and the other in orange fur color. A heterozygote animal has patches of orange and black fur (tortoiseshell). Which coat color phenotypes are expected from the cross of a black female and an orange male?
(A)tortoiseshell females; tortoiseshell males
(B)black females; orange males
(C) tortoiseshell females; black males
(D)orange females; black males