Ruth's Physician Informed Her That a Single Dominant Gene on Chromosome

Multiple Choice

Ruth's physician informed her that a single dominant gene on chromosome 4 transmits her condition. She was also told that if one of her parents had the gene, she stood a 50 percent chance of inheriting the gene and developing the disorder. Which disease is her physician most likely referring to?

A) Huntington's disease
B) Parkinson's disease
C) Alzheimer's disease
D) Pick's disease