Huntington disease is caused by an expanding triplet repeat within the HD gene.

Name: Huntington disease is caused by an expanding triplet repeat within the HD gene.
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Huntington disease is caused by a repeating sequence of CAG (cytosine, adenine, guanine) within the HD gene, which results in an expansion of a triplet repeat. This expansion leads to the production of an abnormal version of the huntingtin protein, which affects the function of neurons in the brain and causes the symptoms of the disease.

Huntington Disease Is Caused by an Expanding Triplet Repeat Within