Visit Your Local PBS Station PBS Home PBS Home Programs A-Z TV Schedules Watch Video Donate Shop PBS Search PBS
Ghost in Your Genes: Experts investigate how a mysterious 'second genome' helps determine our biological fates.
Epigenetic Therapy

Epigenetic Therapy
Dr. Jean-Pierre Issa examines the connection between epigenetics, aging, and cancer.

Ask the Expert

Ask the Expert
Geneticist Randy Jirtle answers questions about how our lifestyles, via epigenetics, can impact the health of our children, and more.

A Tale of Two Mice

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

Gene Switches

Gene Switches
Not all switches are epigenetic. As this slide show reveals, some are genetic—and amazingly powerful.


Watch a Preview
Program available in HD

TV Program Description
Links & Books
Teacher's Guide
e-mail newsletter
Don't miss upcoming NOVA broadcasts and companion Web sites—subscribe to our e-mail newsletter.

ExxonMobil HHMI CPB Alfred P. Sloan Foundation National Science Foundation National Endowment for the Humanities

Support provided by

For new content
visit the redesigned
NOVA site