Clarissa's mother was 38 years old at the time of Clarissa's birth. Clarissa suffers from severe intellectual disabilities, and doctors have diagnosed that her condition is due to an extra chromosome that she received at the time of conception. Identify the condition afflicting Clarissa.

A. Sickle-cell anemia
B. Tay-Sachs disease
C. Down syndrome
D. Phenylketonuria


Answer: C

Psychology

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