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Developmental Disabilities

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Global delay is defined as:

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A. Delay in 1 SD in 3 or more developmental areas

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B. Delay of 1 SD in 2 or more developmental areas

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C. Delay of 2 SD in 3 or more developmental areas

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D. Delay of 2 SD in 2 or more developmental areas

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D. Delay of 2 SD in 2 or more developmental areas

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A 12-month-old child is saying 7 words and can point to all of his facial features; this child would correctly be described as:

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A. Mildly delayed (functioning within 3 months of age)

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B. On target for age

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C. Slightly advanced for his age

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C. Slightly advanced for his age

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If both parents are carriers of a recessive genetic trait, they will have

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A. A 25% chance of having a child with that trait

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B. A 50% chance of having a child with that trait

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C. A 75% chance of having a child with that trait

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D. A 100% chance of having a child with that trait

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A. A 25% chance of having a child with that trait

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The most common genetic cause of Down syndrome is?

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A. Trisomy 21

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B. Mosaic Trisomy 21

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C. Translocation

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A. Trisomy 21

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Which of the following is an X-linked disorder?

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A. Cri-du-chat

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B. Duchenne Muscular Dystrophy

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C. Niemann–Pick disease

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D. Spinal Muscular Atrophy

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B. Duchenne Muscular Dystrophy

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Which developmental disorder can be ameliorated through diet?

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A. Fragile X

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B. Phenylketonuria

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C. Rett syndrome

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D. Trisomy 18

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B. Phenylketonuria

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Tay–Sachs is associated with what type of inborn error of metabolism?

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A. Creatine deficiency

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B. Lysosomal storage

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C. Sterol synthesis

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