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        How to Conquer a Genetic Disease

        The Human Genome Project has determined that human DNA contains about thirty thousand genes. A mutation in just one of them can cause a genetic disease, such as Parkinson's or cystic fibrosis. This excerpt from Blazing a Genetic Trail, by the Howard Hughes Medical Institute, explains how recently developed molecular techniques allow researchers to find faulty genes, identify missing or dysfunctional proteins, and develop treatments and cures.

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