What is the definition of epistasis? (1 point)

Question

• when a dominant allele for a specific trait is not completely expressed over the recessive allele
• when one trait is determined by multiple genes
• when the allele of one gene interferes with the expression of another gene
• when one gene affects multiple phenotypes

Answer 1

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