Huntington’s disorder is an inherited neurodegenerative disorder in which brain cells are damaged and die over time, beginning to progressive loss of mental and physical abilities.
Inheritance is also known as autosomal domaint. A person has pair of the gene, but one abnormal copy is enough to cause the disease. Children of an affected parent have a 45 to 50% chance of inheriting the gene’s abnormal copy, hence the disease.
Read: What Is A Brain Aneurysm?