When a given trait is the result of multigene action, one of the genes may mask the expression of one or all other genes. this phenomenon is termed as epistasis.
One gene may mask the expression of one or more other genes in a phenomenon called epistasis. Epistasis occurs when the phenotype of a particular gene is determined by the presence or absence of one or more other genes. For example, the gene for black hair color may be epistatic to the gene for brown hair color. This means that the black hair color gene masks the expression of the brown hair color gene, and that a person with two black hair color genes will have black hair, regardless of whether they have one or two brown hair color genes.
Learn more about genes at : https://brainly.com/question/8832859
#SPJ4
