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Premieres Wednesday, May 16, 2012 at 8:00 p.m. ET/PT. Check your local listings. 00:31
Full Program: Dr. Philip Leder discusses the implications of biotechnology. 28:31
Our lifestyles and environment can change the way our genes are expressed. 13:25
Full Program: NOVA chronicles the race to decode the human genome. 01:53:02
Genetics and brain physiology can affect a dog's personality and behavior. 03:09