How much does our DNA shape who we become? Four experts in science and psychology debate the classic "nature versus nurture" question with a eye toward recent breakthroughs in genetic science and DNA testing. FOR THE MOTION: Robert Plomin - Professor of Behavioral Genetics, King’s College London Nancy Segal - Professor of Psychology, California State University, Fullerton & Director, Twin Studies Center AGAINST THE MOTION: Paige Harden - Psychology Professor, University of Texas Ann Pleshette Murphy - Author & Parenting Expert Cast your vote at www.iq2us.org Learn more about your ad choices. Visit megaphone.fm/adchoices