A dominant gene, b+, is responsible for the wild-type body color of Drosophila. It’s recessive allele,...

A dominant gene, b+, is responsible for the wild-type body color of Drosophila. It’s recessive allele, b, produces black body color. A testcross of a wild-type female produced 52 black flies and 58 wild-type flies in the F1 generation.

a. What are the genotypes of the parents?

b. What are the genotypes of the F1 generation?

c. If the wild-type F1 females are crossed with their black F1 brothers, what genotypic and phenotypic ratios would be expected in their F2 offspring?

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gladiator answered 3 hours ago

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