Stand alone vs standalone Stand alone is an idiom meaning one who is unequaled or without peer, notice that the verb form is two separate words. 1 To 1 English native Teachers, the best way to improve your English! Click here to find out more!
From Wikipedia, the free encyclopedia. Epigenetics is the study of changes in gene activity which are not caused by changes in the DNA sequence. It is the study of gene expression, the way genes bring about their phenotypic effects.
Epigenetics is involved in many normal cellular processes. Consider the fact that our cells all have the same DNA, but our bodies contain many different types of cells: neurons, liver cells, pancreatic cells, inflammatory cells, and others.his is the type of epigenetic change that is responsible for the inactivated X chromosome of females. In contrast, methylation of a different lysine (K4) on the same histone (H3) is a marker for active genes (Egger et al ., 2004).