| Date | May 2018 | Marks available | 1 | Reference code | 18M.1.SL.TZ2.12 |
| Level | Standard level | Paper | Paper 1 | Time zone | Time zone 2 |
| Command term | Question number | 12 | Adapted from | N/A |
Question
Some yeast genes can be replaced by human genes that then continue to produce the same human proteins in the yeast cells. Which statement helps to explain this evidence?
A. The DNA of yeast and humans is identical.
B. Yeast and humans have the same number of chromosomes.
C. The genetic code is universal.
D. Yeast and humans are both eukaryotes.
Markscheme
C
Examiners report
[N/A]
