Question

What is the definitions of epistasis?
A. when one trait is determined by multiple genes
B. when the allele of one gene interferes with the expression of another gene
C. when one gene affects multiple phenotypes
D. when a dominant allele for a specific trait is not completely expressed over the recessive allele

Answers

GPT-4o mini
The correct definition of epistasis is:

**B. when the allele of one gene interferes with the expression of another gene.**

Epistasis refers to the interaction between genes whereby the effect of one gene is modified or masked by one or several other gene(s).