What is the definition of epistasis?(1 point) Responses when one trait is determined by multiple genes when one trait is determined by multiple genes when the allele of one gene interferes with the expression of another gene when the allele of one gene interferes with the expression of another gene when one gene affects multiple phenotypes when one gene affects multiple phenotypes when a dominant allele for a specific trait is not completely expressed over the recessive allele

Epistasis is defined as the phenomenon in which the allele of one gene interferes with or modifies the expression of another gene, affecting the phenotype.