In the fruit fly Drosophila melanogaster, very dark (ebony) body color is determined
January 8th, 2018
) 1. In the fruit fly Drosophila melanogaster, very dark (ebony) body color is determined by the e allele. The e allele produces the normal wild-type, honey-colored body. In heterozygotes for the two alleles (but not in e e homozygotes), a dark marking called the trident can be seen on the thorax, but otherwise the body is honey-colored. The e allele is thus considered to be incompletely dominant to the e allele.a) When female e e flies are crossed to male e e flies, what is the probability that progeny will have the dark trident marking?b) Animals with the trident marking mate among themselves. Of 300 progeny, how many would be expected to have a trident, how many ebony bodies, and how many honey-colored bodies?