If having a gene for Parkinson’s disease guarantees that Parkinson’s disease will develop, the presence of the gene can be described as a ________
A. risk factor.
B. necessary cause.
C. sufficient cause.
D. contributory cause.
Answer:C
If having a gene for Parkinson’s disease guarantees that Parkinson’s disease will develop, the presence of the gene can be described as a ________
A. risk factor. B. necessary cause. C. sufficient cause. D. contributory cause.