In Drosophila, the eye color peach is determined by an autosomal recessive allel

Question

In Drosophila, the eye color peach is determined by an autosomal recessive allele, p. On another chromosome, the autosomal recessive allele, s, suppresses peach, restoring the wild-type red eye color, but has no other phenotypic effects. Part A After crossing dihybrid F1 flies together, what proportion of the F2 progeny would have wild-type red eyes? Enter your answer exactly as a reduced fraction. Part B After crossing dihybrid F1 flies together, what proportion of the F2 progeny would have peach eyes?

Explanation / Answer

Answer:

Part A: 3/4 red

Part B: 1/4 peach

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