in fruit flies (drosphilia), one eye color Gene is x-linked, with a recessive white allele and a dominant red allele. if white eye female flies were bred to red eyed male Flies, what would be the expected Offspring (assume all parent toll flies are purebred)

Question

Biology

Lorelai Campos

18 October, 12:15

in fruit flies (drosphilia), one eye color Gene is x-linked, with a recessive white allele and a dominant red allele. if white eye female flies were bred to red eyed male Flies, what would be the expected Offspring (assume all parent toll flies are purebred)

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Answers (2)

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Jonathan Ellison · Answer 1

4 heterozygous offspring. the offspring will have red eyes but with the recessive white eye trait.

Jaqueline Bailey · Answer 2

XR Y

Xr XRXr XrY

Explanation:

Hello!

r: recessive white allele

R: dominant red allele

XX: female

XY: male

XrXr: white-eyed female. A possible gamete Xr (

assuming a homozygous female)

XRY: red-eyed male. Possible XR and Y alleles.

50% of the offspring will be heterozygous female with red-eye phenotype (dominant)

50% of the offspring will be male with white eyes phenotype (recessive).

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