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Fruit Flies phenotypes, AP Biology 2003 question 1?

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This is from the AP Biology 2003

1. In fruit flies, the phenotype of eye color is determined by a certain locus. E indicates the dominant allele and e indicates the recessive allele. The cross between a male wild-type fruit fly and a female white-eye fruit fly produced the following offspring.

(a) Determine the genotypes of the original parents and explain your reasoning. You may use Punnet squares to enhance your description, but the results from the Punnett squares must be discussed in your answer.

(b) Use a Chi-squared test on the F2 generation data to analyze your prediction of the parental genotypes. Show all your work and explain the importance of your final answer.

(c) The brown-eyed female in the F1 generation resulted from a mutational change. Explain what a mutation is and discuss two types of mutations that might have produced the brown-eyed female in the F1 generation.

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  1. You need to tell us the offspring that are produced in the first cross.

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