» This Story:Read +|Watch +| Comments

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.

This Story
Emerging science aims to manipulate human DNA
Article | Two mice. One weighs 20 grams and has brown fur. The other is a hefty 60 grams with yellow fur and is prone to diabetes and cancer. They're identical twins, with identical DNA.

Network News

X Profile
View More Activity
» This Story:Read +|Watch +| Comments
© 2009 The Washington Post Company