What is epigenetics?
Our genetic code is set for life, but not all genes are working at all times. The epigenetic code turns genes on and off in response to our environment.
SOURCE: Randy Jirtle, dir., Epigenetics and Imprinting Lab., Duke Uni.; gene images copyright 2005 Nat. Academy of Sciences | By Bonnie Berkowitz and Todd Lindeman/Post ¿ Dec. 15, 2009
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