A 35-year old mentally retarded man died. his brain showed, Ask an Expert

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A 35-year old mentally retarded man died. His brain showed atrophy of the gyri and histologic features indistinguishable from those of Alzheimer disease. He had a chromosomal abnormality (trisomy 21). What was the most likely diagnosis?

A) Cerebral palsy
B) Duchene's Muscular dystrophy
C) Mysthenia gravis
D) Myotonic dystrophy
E) Down syndrome

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Category:- Biology
Reference No.:- M9370322

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