In certain species of flies, eye color is controlled by sim-· ple dominance by a single pair of alleles. A red-eyed fly  was crossed with a white-eyed fly, both of whose parents  had white eyes. All of their offspring (both female and  male) had red eyes. a. Which is dominant, the allele for red eyesor the  allele for white eyes? b. What is the genotype of the white-eyed parents? c. If the white-eyed parent was mated with one of the  red-eyed offspring, what phenotypic ratio wouldyou  expect regarding eye color?

Human Anatomy & Physiology (11th Edition)
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In certain species of flies, eye color is controlled by sim-·
ple dominance by a single pair of alleles. A red-eyed fly 
was crossed with a white-eyed fly, both of whose parents 
had white eyes. All of their offspring (both female and 
male) had red eyes.
a. Which is dominant, the allele for red eyesor the 
allele for white eyes?
b. What is the genotype of the white-eyed parents?
c. If the white-eyed parent was mated with one of the 
red-eyed offspring, what phenotypic ratio wouldyou 
expect regarding eye color?

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