Which best reflects the current scientific status concerning the role of genetics factors in causing Alzheimer's disease?
a. A mutation on chromosome 17 causes Alzheimer's.
b. There is evidence that specific genes may both increase and decrease the risk of Alzheimer's disease.
c. The only genetic link is from data on individuals with both Alzheimer's and Parkinson's diseases.
d. There is no scientific evidence that Alzheimer's has a genetic component.
Question 2
Who is most likely to be a binge drinker?
a. Jamaal, who is very emotionally expressive
b. Ryan, who is a member of a fraternity
c. Leslie, who works part-time
d. Emily, who studies approximately five hours per day
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