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How science is rewriting the book on genes

By David Brown

How Science Is Rewriting the Book on Genes

Washington Post Staff Writer
Monday, November 12, 2007

Everyone who goes to medical school hears this story at some point.

Graduation day comes and the new doctors assemble to get their diplomas. The dean gazes out and announces sheepishly: "I'm sorry to tell you that half of what we taught you is wrong. The problem is, we don't know which half."