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IB Biology SL D2.1.7 Phases of Mitosis Questions

Prophase condenses chromosomes and metaphase aligns them at the equator. Anaphase separates chromatids, then telophase reforms nuclei to produce identical nuclei.

Syllabus
First assessment 2025
Course
Biology SL
Level
SL

Exam points

  • Sequence prophase, metaphase, anaphase and telophase, matching each phase to its chromosome events.
  • Explain how sister chromatids separate and move to opposite poles during anaphase.
  • Calculate chromosome number during anaphase from the diploid number; a cell with 2n=20 has 40 chromosomes during anaphase.

IB Biology SL D2.1.7 Phases of Mitosis Questions question 1

[Maximum number: 1]

The following sequence of pictures, made using an electronic imaging technique, shows a cell undergoing division.

Image I

Image I

State the stage of mitosis typified by image II.

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