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Chapter 20: Developmental Disabilities

Developmental Disabilities

Global delay is defined as:

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

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

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

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

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

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:

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

B. On target for age

C. Slightly advanced for his age

C. Slightly advanced for his age

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

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

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

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

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

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

The most common genetic cause of Down syndrome is?

A. Trisomy 21

B. Mosaic Trisomy 21

C. Translocation

A. Trisomy 21

Which of the following is an X-linked disorder?

A. Cri-du-chat

B. Duchenne Muscular Dystrophy

C. Niemann–Pick disease

D. Spinal Muscular Atrophy

B. Duchenne Muscular Dystrophy

Which developmental disorder can be ameliorated through diet?

A. Fragile X

B. Phenylketonuria

C. Rett syndrome

D. Trisomy 18

B. Phenylketonuria

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

A. Creatine deficiency

B. Lysosomal storage

C. Sterol synthesis

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