Question

In Drosophila, cut wings are controlled by a recessive sex-linked allele (ct), and fuzzy body is...

In Drosophila, cut wings are controlled by a recessive sex-linked allele (ct), and fuzzy body is controlled by a recessive autosomal allele ( fy). When a fuzzy female is mated with a cut male, all the members of the F1 generation are wild-type. What are the proportions of F2 phenotypes, by sex?

Homework Answers

Answer #1

Since only cut wing is sex linked condition and fuzzy is autosomal condition. So, we are considering sex linked character and genotype for cut wings would be XXct and for male it would be XY.

50% male normal or wild type
50% male with cut wings
50% female with cut wings

50% female would be carrier but wildtype (as reccessive condition)

Phenotypic Ratio would be 1:1

Wild type: Cut winged

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