Describes the phenotypes and their proportions

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Describes the phenotypes and their proportions

Suppose that in Drosophila melanogaster an XXY female with white eyes (due to the w^1 allele on both copies of an attached X chromosome) is mated with a male that has a yellow body (due to the y allele on the X chromosome). Which of the following best describes the phenotypes and their proportions in the first-generation progeny?

a. All males will have white eyes and all females will have yellow bodies.

b. All males will have yellow bodies and all females will have white eyes.

c. All males will have white eyes and all females will be wild type.

d. All males will have yellow bodies and all females will be wild type.

e. All males and females will be wild type, although both yellow-bodied and white-eyed flies will appear in the F2 generation.

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