In Another Cross, a Wild-Type Fruit Fly (Heterozygous for Gray

Essay

In another cross, a wild-type fruit fly (heterozygous for gray body color and red eyes)is mated with a black fruit fly with purple eyes. The offspring are as follows: wild type, 721; black-purple, 751; gray-purple, 49; black-red, 45. What is the recombination frequency between these genes for body color and eye color?
Using information from problem 4, what fruit flies (genotypes and phenotypes)would you mate to determine the sequence of the body-color, wing-size, and eye-color genes on the chromosome?