CAIE A Level Biology 9700 · Nucleic acids and protein synthesis
A researcher is investigating DNA replication in a newly discovered eukaryotic cell. Outline the process of semi-conservative DNA replication, explaining the roles of DNA polymerase and DNA ligase. Your answer should include the significance of complementary base pairing and the antiparallel nature of the DNA strands.
7 marks, so the mark scheme is looking for about 7 separate creditworthy points. Making the same point twice in different words earns it once.
Outline means: Give the main points briefly. Less detail than describe, but every key step has to be there. One short line per step, in order. The marks are for coverage, not depth.
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