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Sixty-Year-Old Sam Is Part of a Research Program Designed to Predict

Question 127

Multiple Choice

Sixty-year-old Sam is part of a research program designed to predict future diseases and disorders from brain scans completed yearly. If researchers determine that the brain scans reveal a loss of cells in the substantia nigra, which disorder would they predict that Sam will develop?


A) PKU
B) Tay-Sachs
C) Alzheimer's disease
D) Parkinson's disease

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