In Drosophila, vestigial (partially formed) wings (vg) are recessive to normal long wings (vg+), and the...

In Drosophila, vestigial (partially formed) wings (vg) are recessive to normal long wings (vg+), and the gene for this trait is located on an autosome. The gene for the white-eye trait is on the X chromosome. Suppose a homozygous white-eyed, long-winged female fly is crossed with a homozygous red-eyed, vestigial winged male.

. What are the expected genotypes, phenotypes and their ratios in the F1 flies?

P1 white, long females: ______________ X P2 red, vestigial males: ___________________

F1 genotypes: _______________________________________________________________

F1 phenotypes: _______________________________________________________________

2. What are the expected genotypes, phenotypes and their ratios in the F2 flies?

F1 females: _____________________ X F1 males: __________________________

3. What are the expected genotypes and phenotypes, and the ratios of each of the progeny resulting from a cross between F1 flies back to each parent?

F1 female: _____________________ X P2 red, vestigial male: __________________________

F1 male: _____________________ X P1 white, long female: __________________________

Expert Solution

gladiator answered 7 months ago

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