| Date | May 2009 | Marks available | 1 | Reference code | 09M.1.HL.TZ2.10 |
| Level | Higher level | Paper | Paper 1 | Time zone | Time zone 2 |
| Command term | Question number | 10 | Adapted from | N/A |
Question
If 15 % of a sample of DNA is thymine, what percentage of the DNA is guanine?
A. 15 %
B. 30 %
C. 35 %
D. It cannot be determined from the information given.
Markscheme
C
Examiners report
N/A
Syllabus sections
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