In Cats, Black Fur Colour Is Caused by an X-Linked

question 13

Multiple Choice

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

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