Part 1 of Essay
, also known as Huntington's chorea is a genetic disorder that usually shows up in someone in their thirties and forties, destroys the mind and body and leads to insanity and death within ten to twenty years. The disease works by degenerating the ganglia (a pair of nerve clusters deep in the brain that controls movement, t ....

Part 2 of Essay
.... on the short arm of chromosome 4. A genetic base that exists in triplicate, CAG for short, is effected by Huntington's disease. In normal people, the gene has eleven to thirty-four of these, but, in a victim of Huntington's disease the gene exists from anywhere between thirty-five to one-hundred or more. The gene for the disease is dominant, giving children of victims of Huntington's disease a 50% chance of obtaining the disease. Several other symptoms of the disease exist other than chorea. High levels of ....