A-LevelBiologyThe mitotic cell cycleMay/June 2018Paper 1 Q181 Mark

One of the chromosomes in a nucleus has a telomere which contains many repeats of the base sequence TTAGGG. This chromosome was extracted from four different cells and the total number of bases in the telomere was determined. Which total number of bases was found in the cell that had undergone the most mitotic divisions?

Q: What topic does this question test?

This question tests The mitotic cell cycle in A-Level Biology (syllabus code 9700). It is worth 1 mark.

A5548

B5580

C5645

D5700

✓ Correct Answer

The correct answer is A: 5548

📋 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.

🔒

Unlock the Examiner's Analysis

Join thousands of Cambridge students already using Oracle Prep

About This A-Level Biology Question

Topic

This multiple-choice question tests The mitotic cell cycle in A-Level Biology (syllabus code 9700). It is worth 1 mark.

Source

This question appeared in the Cambridge A-Level Biology May/June 2018 examination, Paper 1 Variant 2.

Practice on Oracle Prep

Oracle Prep provides AI-powered practice for all Cambridge O-Level and A-Level subjects. Our platform includes topic predictions with 87.7% accuracy, AI essay grading, and a comprehensive question bank spanning 25 years of past papers across 29 subjects.