Problem:

Answer the following questions:

Question 1: In a randomly mating laboratory population of Drosophila, 9% of the flies have black bodies (encoded by the autosomal recessive ebonygene) rather than the wild-type tan colour. What proportion of the population would you expect to be heterozygous at the ebonylocus?

Question 2: All the black flies were removed from this population before they could mate, and the remaining tan flies allowed to mate at random. What is the frequency of the ebonyallele in these tan flies?

Question 3: What would you expect the proportion of black-bodied flies to be in the next generation? Please show your work.