A 26-year-old male medical student who has no neurological or psychiatric problems undergoes genetic testing to determine if he has a mutation in his Huntington Disease (HD) gene. Several of his maternal relatives, including his mother, have well documented HD. His test results are: HD allele 1: 17 repeats HD allele 2: 43 repeats The most accurate interpretation of this test is
A.
He is an asymptomatic individual who inherited an HD gene mutation and will develop symptoms of the disease if he lives long enough
B.
He has HD and should seriously consider another occupation as he will never be able to practice medicine competently
C.
These test results are inconclusive and therefore his 50/50 risk of inheriting the disease from his mother has not been modified by the test.
D.
He has inherited one HD gene mutation, but given that he currently has no symptoms by the age of 26, it is most likely that he will never develop the disease.
E.
Luckily, he has one normal allele. Therefore he is only a gene carrier and will never develop the disease