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

question 44

Multiple Choice

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) 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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