IB Biology HL 2.1.13 Cell cycle phases Question Bank
Practise IB Biology HL 2.1.13 by applying cell cycle phases concepts to exam-style questions.
- Syllabus
- First assessment 2025
- Course
- Biology HL
- Level
- HL
Practise IB Biology HL 2.1.13 by applying cell cycle phases concepts to exam-style questions.
In which stage of the cell cycle are chromosomes duplicated?

G1 phase
G2 phase
S phase
Mitosis
C