jamesmichael05
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I have a question from my genetics class that I need help with. It is from a study guide we got.
In Drosophila the recessive allele, ebony (e), appears to be selectively neutral, that is, homozygous ebony flies survive and reproduce at the same rate as wildtype. You initiate a population of Drosophila with 100 homozygous wildtype flies, 70 heterozygous flies, and 50 homozygous ebony flies. Males and females are represented equally in each group.
1)What is the frequency, p, of the dominant allele, e+, in this parental generation.
I got 0.614, is that right?
2)What will be the frequency of the ebony phenotype (genotype e e) in the F1 generation?
3)You take the F1 generation and kill 20% of the ebony flies. The flies breed randomly and produce the F2 generation. What is s, the selective coefficient? What will be the frequency of ebony flies in the F2 generation?
I don't know how to do these last two questions, and I really need to know how.
I can't get ahold of my professor.
So if you can help, it would be appreciated.
Thank you!
-Katie
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