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.

Question

Quizplus · Accepted Answer

A sufficient cause means that if the cause is present, the effect will also occur. In this case, if the gene for Parkinson's disease guarantees the development of the disease, then the presence of the gene is a sufficient cause for Parkinson's disease.

If Having a Gene for Parkinson's Disease Guarantees That Parkinson's