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NOVA® Ghost in Your Genes DVD

Item # 492200

Grade 7 and up. New findings are questioning the long-held belief that all inherited traits are passed on by our genes. The fast-growing field of epigenetics investigates the hidden influences that could affect not only our health today but our descendants’ health far into the future. Ghost in Your Genes explores epigenetics, interviewing scientists in the field and following what could be a paradigm shift in the way we think about inheritance and genes. Close-captioned. 56 minutes. 2007.

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Grade 7 and up. NOVA® explores new findings that call into question the long-held belief that all of our inherited traits are passed on by our genes. The fast-growing field of epigenetics investigates hidden influences that could affect not only our health today but our descendants’ health far into the future.

It now seems that our environment makes small chemical changes to our DNA without affecting the gene’s overall makeup. To put it another way, epigenetics adds another layer to our DNA that acts as a control system of “switches.” Experiential factors such as nutrition or stress may trigger these switches and turn genes on or off. These subtle changes can then be “remembered” and passed on from generation to generation, altering inherited traits.

Ghost in Your Genes explores this new idea, interviewing scientists in the field and following what could be a paradigm shift in the way we think about inheritance and genes. Close-captioned. 56 minutes. 2007.

 
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