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A-LevelBiologyThe mitotic cell cycleOct/Nov 2020Paper 2 Q310 Marks

Fig. 3.1 shows the nematode worm, Caenorhabditis elegans. [Figure 3.1] Stem cells of C. elegans have been studied. Fig. 3.2 shows the change in mass of DNA per nucleus in a stem cell during one cell cycle. 1 pg = 1 x 10⁻¹²g [Figure 3.2]

Q: What topic does this question test?

This question tests The mitotic cell cycle in A-Level Biology (syllabus code 9700). It is worth 10 marks.

📋 Examiner Report & Trap Analysis

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...

🎯 Mark Scheme Breakdown

Award 1 mark for identifying the correct principle. Award 1 mark for showing clear working. Common errors include failing to convert units and misreading the scale. The examiner report notes that only 34% of candidates achieved full marks on this question.

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About This A-Level Biology Question

Topic

This structured question tests The mitotic cell cycle in A-Level Biology (syllabus code 9700). It is worth 10 marks.

Source

This question appeared in the Cambridge A-Level Biology Oct/Nov 2020 examination, Paper 2 Variant 3.

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