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

Sign up to Oracle Prep to view the full model answer with examiner insights.

A-LevelBiologySelection and evolutionOct/Nov 2020Paper 4 Q37 Marks

A subspecies is a genetically distinct population of a species that has some phenotypic differences but is not yet reproductively isolated. 500000 years ago, the European house mouse, Mus musculus, evolved into two subspecies, Mus musculus domesticus and Mus musculus musculus.

Q: What topic does this question test?

This question tests Selection and evolution in A-Level Biology (syllabus code 9700). It is worth 7 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.

🔒

Unlock the Examiner's Analysis

Join thousands of Cambridge students already using Oracle Prep

About This A-Level Biology Question

Topic

This structured question tests Selection and evolution in A-Level Biology (syllabus code 9700). It is worth 7 marks.

Source

This question appeared in the Cambridge A-Level Biology Oct/Nov 2020 examination, Paper 4 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.