In fruit flies (Drosophila melanogaster) there is a dominant allele for red eyes and a recessive allele for white eyes. These al
leles are located on the X chromosome. If a heterozygous red-eyed female is mated with a white-eyed male, what percentage of the offspring are expected to be white-eyed females?
50% of the offspring female population are expected to be white eyed females
Explanation:
Since the allele can only be found on the X chromosome, the chances of the offspring developing white eyes, would mostly occur in the females; since the heterozygous female would mate with a white eyed male.
This results to the following below
R- red eyes
w- white eyes
Female - R w X Male- w w
Offspring alleles F1- R w R w w w w w
Therefore, from the cross, we can conclude that the percentage possibility of white eyed females is... 50%.
