A-LevelBiologyNucleic acids and protein synthesis9700/12 · May/June 2019 · Q181 Mark
Which statement correctly describes the base pairing in a molecule of DNA?
AThe purine adenine forms bonds with the pyrimidine thymine.
BThe purine adenine forms bonds with the pyrimidine uracil.
CThe purine cytosine forms bonds with the pyrimidine guanine.
DThe purine guanine forms bonds with the pyrimidine thymine.
✓ Correct answer
A: The purine adenine forms bonds with the pyrimidine thymine.
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