Trisomy of the twenty-first chromosome.

Trisomy of the twenty-first chromosome.

Question 2

A healthcare professional is assessing a child who has complete trisomy of the twenty-first chromosome. What findings does the professional relate to this condition?

a. An IQ of 25 to 70, low nasal bridge, protruding tongue, and flat, low-set ears
b. circumoral cyanosis, edema of the feet, short stature, and mental slowness
c. Widely spaced nipples, reduced carrying angle at the elbow,a nd sparse body hair
d. high-pitched voice, tall stature, gynecomastia, and an IQ of 60 to 90

Question 3

The data reporting that sickle cell disease affects approximately 1 in 600 American blacks is an example of which concept?

a. Incidence
b. Prevalence

c. Ratio
d. Risk