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