The New Frontiers of Epigenetics

The New Frontiers of Epigenetics
Montana Fish, Wildlife and Parks via AP

Epigenetics, the study of mechanisms by which genes are turned on or off without altering their genetic code or DNA sequences, is one of many ways that cells regulate gene expression. Epigenetics has helped scientists better understand complex and diverse biological processes such as cell differentiation, genomic imprinting, and X-chromosome inactivation and operates via two mechanistic processes:

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