| Date | May 2011 | Marks available | 1 | Reference code | 11M.1.SL.TZ1.10 |
| Level | Standard level | Paper | Paper 1 | Time zone | Time zone 1 |
| Command term | Question number | 10 | Adapted from | N/A |
Question
The percentage of thymine in the DNA of an organism is approximately 30 %. What is the percentage of guanine?
A. 70 %
B. 30 %
C. 40 %
D. 20 %
Markscheme
D
Examiners report
N/A
Syllabus sections
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