George is a 10-year-old new patient who was brought to the office by his father because George's teacher noted that George may have a hearing impairment. While taking George's history, you note that he has a rather flat face with slanting eyes, and his tongue protrudes slightly. He appears to have poor muscle tone, and when you ask him a question, his father answers for him. Although his father has not indicated that George suffers from any particular disorder, from your observations you may suspect that George has ____.

A) cystic fibrosis
B) fragile X syndrome
C) Down syndrome
D) hemophilia
E) Klinefelter's syndrome

Question

Avery Westbrooks · Accepted Answer

Final Answer : C, Explanation :  George's described features, such as a flat face, slanting eyes, protruding tongue, and poor muscle tone, are characteristic of Down syndrome, a genetic disorder caused by the presence of all or part of a third copy of chromosome 21.

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