Marsupials, like cats, achieve dosage compensation by X inactivation.You are working in a lab that has discovered a mutation on the X chromosome in marsupials in the same gene that causes the tortoiseshell fur color phenotype in cats.You cross an X⁺Y black-furred male with an X^OX^O orange-furred female.You expect that the X⁺X^O female progeny will have tortoiseshell fur (like cats).Surprisingly, you find that all the females (n = 25)have solid orange fur.Offer a hypothesis to explain these results and describe a genetic test to support your hypothesis.

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The Answer of Marsupials, like cats, achieve dosage compensation by X inactivation.You are working in a lab that has discovered a mutation on the X chromosome in marsupials in the same gene that causes the tortoiseshell fur color phenotype in cats.You cross an X⁺Y black-furred male with an X^OX^O orange-furred female.You expect that the X⁺X^O female progeny will have tortoiseshell fur (like cats).Surprisingly, you find that all the females (n = 25)have solid orange fur.Offer a hypothesis to explain these results and describe a genetic test to support your hypothesis.

Marsupials, Like Cats, Achieve Dosage Compensation by X Inactivation