Biology · Genetics
In Drosophila, white eye colour is an X-linked recessive mutant trait whereas red eye colour is the dominant wild-type trait. If a white-eyed female Drosophila is crossed with a red-eyed male, what phenotypic ratio is expected among the offspring?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1There will be a 1:1 ratio of red and white-eyed female Drosophila and all males would be white-eyed.
- 2All male offspring would be white-eyed and all female offspring would be red-eyed.✓
- 3There will be a 1:1 ratio of red-eyed and white-eyed Drosophila.
- 4All offspring would be red-eyed.
Correct answer
All male offspring would be white-eyed and all female offspring would be red-eyed.
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