In cats, black fur color is caused by an X-linked allele; the other allele at this locus causes orange color. The heterozygote is tortoiseshell. What kinds of offspring would you expect from the cross of a black female and an orange male?
A. black females; orange males
B. orange females; black males
C. orange females; orange males
D. tortoiseshell females; black males
E. tortoiseshell females; tortoiseshell males
