noun Download 🔗Share The modification of the expression of a gene by another unrelated one. Examples : "In Labrador Retrievers, coat color determination is an example of epistasis, where one gene (E/e) determines if pigment is deposited at all, overriding the effect of the gene (B/b) that determines the color of the pigment itself (black or brown). " biology biochemistry organism Chat with AIVocabulary GamePractice Reading