Question

in a group of fruit flies, some individuals have a gray body and others have a black body. in this group, the gene for the body color trait has two alleles. the allele b is for a gray body, and the allele b is for a black body. a certain fruit fly from this group has a gray body. this fly has two alleles for a gray body. based on this information, what is this fruit flys genotype for the body color gene? a gray body a black body bb bb

Explanation:

Genotype refers to the combination of alleles an organism has for a gene. The question states the gray body allele is \(B\), and this fly has two alleles for a gray body. The first two options describe phenotypes (physical traits), not genotypes. \(Bb\) has one gray and one black allele, while \(BB\) has two gray alleles.

Answer:

BB