Which conclusion is implied by the fact that immediate family members of people with Alzheimer's disease have a three-fold higher risk of developing Alzheimer's disease than does the general population?
A) There is no known cause of Alzheimer's disease.
B) Alzheimer's disease is likely caused by exposure to toxins in the environment.
C) There is likely a genetic component to Alzheimer's disease.
D) Alzheimer's disease has a tendency to "skip" generations.

Question

Quizplus · Accepted Answer

The fact that immediate family members of people with Alzheimer's disease have a higher risk of developing the disease suggests that there is likely a genetic component to the disease. This conclusion is supported by research indicating that certain genes are associated with an increased risk of developing Alzheimer's disease.

Which Conclusion Is Implied by the Fact That Immediate Family