Problem: Assume moths have the same sex-determining system as humans. In a species of moth, red wings are caused by an X-linked allele; the other allele at this locus causes white wings. The heterozygote has "candy-cane" wings that are white with red stripes. What kinds of offspring would you expect from the cross of a red female and a white male?a. white females; red malesb. candy-cane females; red malesc. red females; white malesd. white females; white malese. candy-cane females; candy-cane males

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Problem Details

Assume moths have the same sex-determining system as humans. In a species of moth, red wings are caused by an X-linked allele; the other allele at this locus causes white wings. The heterozygote has "candy-cane" wings that are white with red stripes. What kinds of offspring would you expect from the cross of a red female and a white male?

a. white females; red males

b. candy-cane females; red males

c. red females; white males

d. white females; white males

e. candy-cane females; candy-cane males

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Our tutors have indicated that to solve this problem you will need to apply the Chromosomal Theory of Inheritance concept. You can view video lessons to learn Chromosomal Theory of Inheritance. Or if you need more Chromosomal Theory of Inheritance practice, you can also practice Chromosomal Theory of Inheritance practice problems.

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