1. Which of the following is not a feature of Down syndrome? A. Hypothyroidism B. Atlantoaxial…

1. Which of the following is not a feature of Down syndrome? A. Hypothyroidism B. Atlantoaxial instability C. Long, thin hands D. Early dementia E. Oblique palpebral fissures 2. Which of the following is not seen in fragile-X syndrome? A. Large head B. Short stature C. Hyperextensible joints D. Macro-orchidism E. Catlike cry 3. Which of the following is a characteristic feature of Prader-Willi syndrome? A. Anorexia B. Compulsive eating behavior C. Tall stature D. Hypertonic muscles E. Large hands and feet