Epistasis vs. Epigenetics

Epistasisnoun

(genetics) The modification of the expression of a gene by another unrelated one.

Epistasisnoun

the suppression of a gene by the effect of an unrelated gene

Epistasis

Epistasis is a phenomenon in genetics in which the effect of a gene mutation is dependent on the presence or absence of mutations in one or more other genes, respectively termed modifier genes. In other words, the effect of the mutation is dependent on the genetic background in which it appears.

Epigeneticsnoun

(genetics) The study of the processes involved in the genetic development of an organism, especially the activation and deactivation of genes.

Epigeneticsnoun

(genetics) The study of heritable changes caused by the activation and deactivation of genes without any change in DNA sequence.

Epigenetics

In biology, epigenetics is the study of heritable phenotype changes that do not involve alterations in the DNA sequence. The Greek prefix epi- (ἐπι- ) in epigenetics implies features that are or the traditional genetic basis for inheritance.