Introduction for Epigenetics（Jiemin Wong, Ph.D.）Professor

The Institute of Biomedical Science ,College of Life Science, East China Normal University

Epigenetics is the study of heritable mechanisms that affect the transcriptional state of a gene which is not due to change in DNA sequence.

Here is description from wikipedia of what epigenetics is:
    "In biology, and specifically genetics, epigenetics is the study of heritable changes in gene expression or cellular phenotype caused by mechanisms other than changes in the underlying DNA sequence – hence the name epi- (Greek: επί- over, above, outer) -genetics. It refers to functionally relevant modifications to the genome that do not involve a change in the nucleotide sequence. Examples of such changes are DNA methylation and histone deacetylation.

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