Huntington's Disease Etiology

Etiology Huntington’s Disease is an inherited disease. The gene mutation is found on chromosome four (Johns Hopkins). This gene has a specific sequence that is repeated an abnormally large number of times (Johns Hopkins). The more repeats of the sequence, the more likely it is that a person will develop Huntington’s Disease earlier in their lifetime (Johns Hopkins). For most people, the sequence is repeated ten to thirty-five times in one gene, but for people with Huntington’s Disease, the sequence is repeated thirty-six to 120 times in one gene (U.S. National Library of Medicine, 2013). People who have the sequence repeated thirty-six to thirty-nine times may or may not develop the disease, but people who have the sequence repeated forty