Learning objective
A1.2.7—Differences between DNA and RNA
DNA and RNA differ in sugar, bases, strand structure, and usual length, giving each nucleic acid distinct roles in cells.
- Syllabus
- First assessment 2025
- Objective
- A1.2.7
- Level
- SL
Concept essentials
- Differences between DNA and RNA should be described using precise molecular vocabulary.
- Structure and information must be kept separate: backbones provide continuity while bases carry sequence meaning.
- Exam answers should match the command term and avoid adding unsupported extra claims.
