What is a Genetic Disease? | GeneticAlliance.org - 0 views
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A mutation is a change in the letters (DNA sequence) that make up a gene. This is sometimes referred to as a “spelling” mistake.
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Genetic diseases can be inherited because they are mutations in the germ cells of the body—the cells involved in passing genetic information from parents to offspring. Genetic diseases can also result from changes in DNA in somatic cells, or cells in the body that are not germ cells.
