Sex-Linked Inheritance Problem Set 2
Problem 1: Predicting the genotype of a female fly
Correct!
The alleles for eye color and for body color are on the X chromosome of Drosophila, but not on the Y. Red eye color (w+) is dominant to white eye color (w), and tan body color (y+) is dominant to yellow body color (y).What is the genotype of a yellow-bodied, red-eyed female who is homozygous for eye color?
A.
B.
C.
D.
The female with red eyes and a yellow body must be homozygous recessive for the yellow body color allele. She is homozygous dominant for the eye color allele.
E.
University of Arizona
Updated: July 15, 1999
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