| Date | May 2013 | Marks available | 1 | Reference code | 13M.1.HL.TZ1.7 |
| Level | Higher level | Paper | Paper 1 | Time zone | Time zone 1 |
| Command term | Question number | 7 | Adapted from | N/A |
Question
The base sequence of a fragment of DNA is:
ACC GTG CAG GAT
What is the base sequence on the messenger RNA (mRNA) molecule transcribed from it?
A. TGG CAC GTC CTA
B. TGG CUC GTC CTU
C. UGG CTC GUC CUT
D. UGG CAC GUC CUA
Markscheme
D
Examiners report
Questions 7, 8, 10, 11 and 12 also had relatively low discrimination indices because a high proportion of candidates answered them correctly, indicating either good knowledge or that these questions proved to be rather too easy.
