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A-LevelBiologyBiological moleculesMay/June 2011Paper 1 Q91 Mark

Myoglobin is a protein with a similar function to haemoglobin. However, myoglobin does not have a quaternary structure. Why does myoglobin not have a quaternary structure?

AMyoglobin does not contain a haem group.
BMyoglobin does not contain any alpha helices.
CMyoglobin has a fibrous rather than a globular structure.
DMyoglobin has only one polypeptide chain.

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The correct answer is D. This question tests the candidate's understanding of biological molecules within the Biologysyllabus. The examiner's mark scheme requires...

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About This A-Level Biology Question

This multiple-choice question appeared in the Cambridge A-Level Biology (9700) May/June 2011 examination, Paper 1 Variant 2. It tests the topic of Biological molecules and is worth 1 mark.

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