Propensity for some ailments lies with switched-off genes.(N)

From: The Virginian Pilot | Date: December 2, 2007 | Copyright information

Byline: LAURAN NEERGAARD

By Lauran Neergaard

The Associated Press

WASHINGTON

Remember the biology class where you learned that children inherit one copy of a gene from Mom and a second from Dad? There's a twist: Some of those genes arrive switched off. That means there is no backup if the other copy goes bad, making you more vulnerable to disorders including obesity and cancer.

Duke University scientists have identified these...

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