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b'Heredity was once thought to be straightforward.\\xa0Genes were passed in an immutable path from parents to you, and you were stuck \\u2013 or blessed \\u2013 with what you got. DNA didn\\u2019t change.\\xa0\\nBut now we know that\\u2019s not true. Epigenetic factors, such as your environment and your lifestyle, control how your genes are expressed.\\xa0Meanwhile, the powerful tool CRISPR allows us to tinker with the genes themselves.\\xa0DNA is no longer destiny.\\nHear the results from the NASA twin study and what happened to astronaut Scott Kelly\\u2019s DNA after a year on the International Space Station.\\xa0Plus, whether there\\u2019s evidence that epigenetic changes can be passed down.\\xa0And, if we can wipe out deadly malaria by engineering the mosquito genome for sterility, should we do it?\\nGuests:\\n\\n\\nScott Kelly\\xa0\\u2013\\xa0Former military test pilot and astronaut and author of \\u201cInfinite Wonder\\u201d\\n\\n\\nCarl Zimmer\\xa0\\u2013\\xa0Columnist for\\xa0The New York Times,\\xa0author of \\u201cShe Has Her Mother\\u2019s Laugh: The Powers, Perversions, and Potential of Heredity"\\n\\n\\nChristopher Mason\\xa0\\u2013\\xa0Associate professor of genetics and computational biology at Weill Cornell Medicine\\n\\n\\nMichael Snyder\\xa0\\u2013\\xa0Chair of the genetics department and director of the Center for Genomics and Precision Medicine at Stanford University\\n\\n\\nNicole Gladish\\xa0\\u2013\\xa0PhD candidate, department of medical genetics, University of British Columbia\\n\\nOriginally aired October 15, 2018\\nThis episode brought to you in part by Hero Wars. Learn more about Hero Wars at hero-wars.com\\nFeaturing music by\\xa0Dewey Dellay\\xa0and\\xa0Jun Miyake\\nBig Picture Science is part of the\\xa0Airwave Media\\xa0podcast network.\\xa0Please contact\\xa0sales@advertisecast.com\\xa0to inquire about advertising on Big Picture Science.\\nYou can get early access to ad-free versions of every episode by joining us on\\xa0Patreon. Thanks for your support!\\n\\xa0\\nLearn more about your ad choices. Visit megaphone.fm/adchoices'