Scientists are reporting a breakthrough in genetic research that may help speed up efforts to track common illnesses like heart disease and diabetes.
A report in the journal Nature details how researchers have been able to map patterns of tiny D-N-A differences in people.
Scientists hope to use genetic clues to find disease-related genes as a way to diagnose, predict and develop treatments. The genetic data gathering has already been used to track down a gene linked to the eye disorder macular degeneration.
Lead researcher Doctor David Altshuler of the Broad Institute in Boston says the so-called "Hap-Map" represents a "real sea change" in studying the genetics of disease.
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