Sex-Linked Inheritance Problem Set
Problem 1: Crossing a white-eyed female and red-eyed male fly
In a cross between a white-eyed female fruit fly and red-eyed male, what percent of the female offspring will have white eyes? (White eyes are X-linked, recessive)
A. 100%
B. 25%
C. 50%
D. 75%
E.
0%
All of the females are red-eyed and heterozygous. All of the males are white-eyed and hemizygous.
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Updated: July 15, 1999
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