What does yellow body color dominant to blue mean?

In genetics, the term "yellow body color dominant to blue" refers to a trait where the yellow body color is the dominant phenotype over the blue body color. This means that if an organism carries one allele for yellow and one for blue, the yellow color will be expressed in the phenotype. The dominance indicates that the yellow trait will mask the expression of the blue trait in the presence of both alleles. This concept is commonly used in studies of inheritance patterns in various organisms.