Chapter 03

Instructions

Choose your answers from a-d by clicking the radio button next to each choice and then press 'Submit' to get your score.

The most common chromosome abnormality in first trimester spontaneous miscarriages is:

a) trisomy.

b) monosomy.

c) triploidy.

d) tetrasomy.

Question 2

Which of the following karyotypes is not compatible with survival to birth?

a) 47,XY,+13

b) 47,XX,+18

c) 47,XY,+21

d) 45,Y

Question 3

The DiGeorge/Shprintzen syndrome is caused by a deletion in which chromosome?

a) 4

b) 7

c) 15

d) 22

Question 4

Which of the following is not a chromosome instability syndrome?

a) Klinefelter syndrome

b) Ataxia telangiectasia

c) Fanconi anaemia

d) Bloom syndrome

Question 5

Which of the following trisomy karyotypes has the mildest effect on human development?

a) 47,XXX

b) 47,XXY

c) 47,XX,+13

d) 47,XY,+21