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 one allele for a gray body and one allele for a black body.
Based on this information, what is this fruit fly's genotype for the body color gene?

Questions

Answer 1

Based on the information provided, the fruit fly has a gray body, which is associated with the allele B for gray and the allele b for black. Since the fruit fly has one allele for gray (B) and one for black (b), its genotype for the body color gene is **Bb**. This indicates that the fruit fly is heterozygous for the body color trait, carrying one of each allele.