In genetics, epigenetics is the study of cellular and physiological trait variations that are not caused by changes in the DNA sequence; in layman's terms, epigenetics is essentially the study of external or environmental factors that turn genes on and off and affect how cells read genes. Hence, epigenetic research seeks to describe dynamic alterations in the transcriptional potential of a cell. These alterations may or may not be heritable, although the use of the term "epigenetic" to describe processes that are not heritable is controversial. Unlike genetics based on changes to the DNA sequence, the changes in gene expression or cellular phenotype.
Related Journals of Epigenetics
Epigenetics, Epigenetics and Chromatin, Clinical Epigenetics, Epigenetics and Human Health