What is another word for nonadditive gene?
Pronunciation: [nˌɒnˈadɪtˌɪv d͡ʒˈiːn] (IPA) 
The term nonadditive gene refers to a gene whose effects cannot be predicted based on the combination of the effects of its individual alleles. Synonyms for nonadditive gene include epistatic gene, interacting gene, and modifier gene. Epistatic genes refer to genes that affect the expression of other genes, while interacting genes refer to genes whose effects are dependent on the presence of other genes. Modifier genes refer to genes that modify the expression of other genes by altering the phenotype of an individual. These synonyms are important in genetic research to help describe the complex interactions between genes and their effects on traits and diseases.
