Numerical Chromosomal Abnormalities

Question 1

Cystic hygromas appear in children with _____ syndrome.

Answer 1

Turner (45, X)

Question 2

Microcephaly and “rocker bottom” feet are characteristics of which chromosomal abnormality?

Answer 2

Trisomy 18

Question 3

Roughly ____ percent of people with trisomy 21 have hearing problems.

Answer 3

75

Question 4

Girls born with prenatal lymphedema might also have what reproductive and cardiac problems?

Answer 4

Gonadal dysgenesis and coarctation of the aorta (due to Turner syndrome 45, X)

Question 5

Klinefelter syndrome (47, XXY) can result from either paternal or maternal _____.

Answer 5

errors in meiosis I

Question 6

Are Edwards syndrome (trisomy 18) children hypo- or hypertonic?

Answer 6

Hypertonic

Question 7

List the characteristics of Patau syndrome (trisomy 13).

Answer 7

omphalocoele; CNS dysfunction; renal dysplasia; congenital heart disease