| Date | November 2012 | Marks available | 3 | Reference code | 12N.3.hl.TZ0.B4 |
| Level | HL | Paper | 3 | Time zone | TZ0 |
| Command term | State | Question number | B4 | Adapted from | N/A |
Question
State two differences in composition and one difference in structure between RNA and DNA.
Markscheme
ribose in RNA and deoxyribose in DNA;
uracil in RNA and thymine in DNA;
RNA single-stranded and DNA double-stranded/double helix;
Accept suitable drawings/diagrams.
Examiners report
[N/A]
