Huntington's disease is caused by a dominant allele for a protein found brain cells. The symptoms of Huntington's disease include mental
deterioration and uncontrollable movements. Symptoms do not usually appear until middle age. How could a doctor determine the chances that a
patient would have Huntington's disease?
A. By identifying if the patient's parents carry the dominant allele for Huntington's disease
O
B. By identifying if the patient is married to a person that exhibits symptoms of Huntington's disease
O
C. By identifying if the patient had been in close contact with someone that exhibits symptoms of Huntington's disease
O
D. By identifying if the patient had been in close contact with someone that carries the dominant allele for Huntington's disease
