Epigenetics

Our lifestyles and environment can change the way our genes are expressed, leading even identical twins to become distinct as they age.

A Tale of Two Mice

In this audio slide show, hear how the epigenome can make identical-twin mice appear so different.

Ask the Expert

Randy Jirtle, a geneticist in the Department of Radiation Oncology at Duke, answers viewer questions about epigenetics and how our lifestyles might affect the health of our children and even grandchildren.

Video Extra

Cloned cats with different coats? See it here.

• Links & Books
• Teacher's Guide
• Transcript
• Participants
• Send Feedback
• Join the Discussion
• Watch the complete episode
• Buy the DVD
• Credits

© | Created July 2007