A-LevelBiologyNucleic acids and protein synthesisFeb/Mar 2021Paper 1 Q181 Mark

DNA molecules in a eukaryotic cell must be packaged compactly because their combined length is much greater than the diameter of the nucleus. Which structures are required during the process of packaging DNA molecules compactly?

Q: What is the correct answer to this A-Level Biology question?

The correct answer is C: histone proteins.

Q: What topic does this question test?

This question tests Nucleic acids and protein synthesis in A-Level Biology (syllabus code 9700). It is worth 1 mark.

Achromatids

Bchromosomes

Chistone proteins

Dtelomeres

✓ Correct Answer

The correct answer is C: histone proteins

📋 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 multiple-choice question tests Nucleic acids and protein synthesis in A-Level Biology (syllabus code 9700). It is worth 1 mark.

Source

This question appeared in the Cambridge A-Level Biology Feb/Mar 2021 examination, Paper 1 Variant 2.

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