A-LevelBiologyNucleic acids and protein synthesis9700/12 · May/June 2017 · Q211 Mark
Which row is correct for adenine? [Table with columns 'has a single ring structure', 'is a purine', 'joins to its complementary base with 3 hydrogen bonds' and rows A, B, C, D]
This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.
A✓, ✓, ✓
B✓, X, X
CX, ✓, X
DX, X, ✓
✓ Correct answer
C: X, ✓, X
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