To discover the location of a genetic mutation that causes disease in humans, scientists use genetic mapping. Specifically, they look for genetic markers, or previously discovered DNA polymorphisms, that show statistical association with the disease gene. The statistical association means that the:

Question

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The statistical association between a genetic marker and a disease gene means that the DNA polymorphism and the disease gene are linked. This does not necessarily mean that the DNA polymorphism causes the disease or that the disease causes the DNA polymorphism.

To Discover the Location of a Genetic Mutation That Causes