____ is characterized by progressive degeneration of the nervous system.
A)Huntington's disease
B)Down syndrome
C)Phenylketonuria
D)Sickle-cell disease

Question

Quizplus · Accepted Answer

Huntington's disease is a genetic disorder that causes progressive degeneration of nerve cells in the brain, leading to both physical and mental impairments. It is caused by a mutation in the HTT gene, which leads to the accumulation of toxic proteins in the brain. Symptoms usually appear in mid-adulthood and gradually worsen over time, eventually leading to death. There is no cure for Huntington's disease, although some medications can help manage its symptoms.

____ Is Characterized by Progressive Degeneration of the Nervous System