Author Question: Which statement correctly explains the etiology of Down syndrome? a. There is an extra chromosome ... (Read 46 times)

sdfghj · **on:** Jul 11, 2018

Which statement correctly explains the etiology of Down syndrome?

a. There is an extra chromosome on the 21st pair.
b. There is a missing chromosome on the 21st pair.
c. There are two pairs of the 21st chromosome.
d. The chromosome's 21st pair is missing.

Question 2

The nurse explains that cognitive impairment is categorized by four levels that depend on the intelligence quotient (IQ). How is a child with an IQ of 45 classified?

a. Within the normal low range
b. Educable
c. Trainable
d. Severe

aidanmbrowne · **Reply #1 on:** Jul 11, 2018

Answer to Question 1

ANS: A
Down syndrome is attributed to an extra chromosome on the 21st pair.

Answer to Question 2

ANS: C
The category of trainable is identified on the basis of an IQ of 35 to 55.