IB Biology SL 2.1.5 DNA replication prerequisite Question Bank
Practise IB Biology SL 2.1.5 by identifying when DNA replication occurs and how it produces sister chromatids before division.
- Syllabus
- First assessment 2025
- Course
- Biology SL
- Level
- SL
Exam points
- Identify S phase as the stage when DNA replication occurs.
- Explain how replication produces sister chromatids before mitosis or meiosis.
- Compare DNA quantity or chromatid number at G1 and G2.
D2.1.5—DNA replication prerequisite question 1
The diagram shows the stages of the cell cycle.
Distinguish between the quantity of DNA of the cell at G1 and G2.
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