Which describes the interaction between genes such that the presence of certain alleles in one locus affects the expression of certain alleles in the other locus?

A) Pleiotropy
B) Epistasis
C) Polygenic inheritance
D) Norm of reaction
E) Codominance

Epistasis

Condition in which certain alleles of one locus alter the expression of alleles of a different locus.

Alleles

Different forms of a gene that arise by mutation and are found at the same place on a chromosome.

Gene Interaction

The ways in which different genes influence each other's expression, often leading to complex traits or outcomes in an organism.