Sex-Linked Inheritance Problem Set
Problem 5: Another white-eyed female x red-eyed male fly cross
A white-eyed female fruit fly is crossed with a red-eyed male. Red eyes are dominant, and X-linked. What are the expected phenotypes of the offspring?
A.
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All of the females will have red eyes; half of the males will have red eyes, and half of themales will have white eyes.
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B.
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All of the females and all of the males will have white eyes.
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C.
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All of the females will have red eyes; all of the males will have white eyes.
All of the females are red-eyed and heterozygous. All of the males are white-eyed and hemizygous.
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D.
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All of the females and all of the males will have red eyes.
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E.
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All of the females will have white eyes; half of the males will have red eyes, and half of the males will have white eyes.
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Updated: July 15, 1999
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