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 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 when a dominant allele for a specific trait is not completely expressed over the recessive allele when the allele of one gene interferes with the expression of another gene

Epistasis is defined as when the allele of one gene interferes with the expression of another gene.