The genes for sepia eye color, short bristles, and dark body coloration are on the samechromosome of Drosophila melanogaster. Each gene has two alleles: wild type, which isdominant, or mutant, which is recessive.se+ is dominant and causes red eyes; se is recessive and causes sepia eyessb+ is dominant and causes long bristles; sb is recessive and causes short bristlesb+ is dominant and causes gray body coloration; b is recessive and causes dark bodycolorationThe sepia gene and short bristle gene are separated by 33 map units; the short bristle geneand the dark body gene are separated by 12 map units. The sepia gene and dark body geneare separated by 45 map units.If you crossed a fly, which was homozygous for the wild type allele of each gene (and had thephenotypes red eyes, long bristles, and gray body) with a homozygous recessive fly for eachgene (and had the phenotypes sepia eyes, short bristles, and dark body coloration), the F₁generation would entirely consist of flies that had the wild type traits, but were heterozygousfor each gene.Ifyou were to conduct a test cross, and cross these heterozygous F₁ flies to recessivehomozygous flies, how many flies would you predict to observe in each of the eight predictedphenotypic categories with respect to these three genes (given the map units above) if therewere 1,000 total offspring? Show your work.

Name: The genes for sepia eye color, short bristles, and dark body colorati
Uploaded: 2024-03-20T06:43:04.000Z
Channel: Bartleby
Description: The genes for sepia eye color, short bristles, and dark body coloration are on the samechromosome of Drosophila melanogaster. Each gene has two alleles: wild type, which isdominant, or mutant, which is recessive.se+ is dominant and causes red eyes;