What is the relation of genetics to Alzheimer’s disease? a. Identified genes have a strong effect on early-onset Alzheimer’s disease and a weaker effect on lateonset disease. b. Identified genes have...

What is the relation of genetics to Alzheimer’s disease? a. Identified genes have a strong effect on early-onset Alzheimer’s disease and a weaker effect on lateonset disease. b. Identified genes have a weak effect on early-onset Alzheimer’s disease and a stronger effect on lateonset disease. c. Identified genes have a strong effect on both the early and late onset forms of Alzheimer’s disease. d. Identified genes have little or no effect on Alzheimer’s disease, regardless of time of onset.