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A-LevelBiologyInherited changeOct/Nov 2018Paper 4 Q38 Marks

Mammals such as sheep, Ovis aries, and goats, Capra hircus, are important agricultural animals that are sometimes kept together in mixed flocks. Very occasionally, live offspring are born from a mating between a male sheep and a female goat. In sheep 2n = 54 and in goats 2n = 60.

Q: What topic does this question test?

This question tests Inherited change in A-Level Biology (syllabus code 9700). It is worth 8 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 Inherited change in A-Level Biology (syllabus code 9700). It is worth 8 marks.

Source

This question appeared in the Cambridge A-Level Biology Oct/Nov 2018 examination, Paper 4 Variant 2.

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