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IB Biology HL D2.1.13 Hl Cell Cycle Phases Questions

Analyse the sequence and roles of G1, S, G2, mitosis and cytokinesis across the cell cycle in IB Biology HL D2.1.13.

Syllabus
First assessment 2025
Course
Biology HL
Level
HL

Exam points

  • Sequence G1, S, G2, mitosis and cytokinesis as the repeating cell cycle.
  • Explain G1 growth, S-phase DNA replication and G2 preparation before mitosis.
  • Identify interphase as the longest period and relate its phases to cell proliferation.

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Study D2.1.13 (HL)—Cell cycle phases conceptsOpen the corresponding Concept lesson for explanations, examples and exam connections.

IB Biology HL D2.1.13 Hl Cell Cycle Phases Questions question 1

[Maximum number: 1]

In which stage of the cell cycle are chromosomes duplicated?

Figure for Question IB Biology HL D2.1.13 Hl Cell Cycle Phases Questions question 1 — IB Biology HL
A

G1 phase

B

G2 phase

C

S phase

D

Mitosis

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