DP Biology (last assessment 2024)
Question 21N.1.SL.TZ0.14
| Date | November 2021 | Marks available | [Maximum mark: 1] | Reference code | 21N.1.SL.TZ0.14 |
| Level | SL | Paper | 1 | Time zone | TZ0 |
| Command term | Question number | 14 | Adapted from | N/A |
14.
[Maximum mark: 1]
21N.1.SL.TZ0.14
Down syndrome can be detected before birth by chorionic villus sampling. From where are the cells for this test taken?
A. Amniotic fluid surrounding the fetus
B. Fetal digestive system
C. Tissue in the placenta
D. Lining of the uterus of the mother
[1]
Markscheme
C
Examiners report
This was another area of the program that was obscure for most SL candidates. Confusion with amniocentesis was forgivable.
