Why do the physical characteristics of identical twins diverge as they age? Follow the interaction of the environment and the genome in a pair of twins over time.

For other great videos, interactive activities and more, be sure to visit:
http://learn.genetics.​utah.edu/content/epigenetics/
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More information on how identical twins are helping scientists pinpoint environmental impact on the epigenome: http://learn.genetics.utah.edu​/content/epigenetics/twins/

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Teachers! Integrating the Epigenetics curriculum into your classroom is a breeze!
For activities, assessment questions, learning objectives, scientist talk videos,
background information and thoughts from other teachers, visit:
http://teach.genetics.utah.e​du/content/epigenetics/