A-LevelBiologyThe mitotic cell cycleMay/June 2025Paper 1 Q211 Mark
The diagram shows the arrangement of chromosomes with attached spindle fibres during a stage of mitosis. [Figure 21.1 (diagram of chromosomes with spindle fibres)] Which row correctly identifies the stage of mitosis and describes what is happening?
Astage of mitosis: anaphase, description: chromosomes are being pulled towards the centromeres
Bstage of mitosis: metaphase, description: sister chromatids are replicating prior to separation
Cstage of mitosis: metaphase, description: chromosomes are being positioned along the equator of the cell
Dstage of mitosis: anaphase, description: sister chromatids are being pulled towards the poles of the cell
✓ Correct Answer
The correct answer is D. This question tests the candidate's understanding of the mitotic cell cycle within the Biologysyllabus. The examiner's mark scheme requires...
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Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...
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