CAIE A Level Biology 9700 · Genetic technology
A biotechnologist aims to produce human insulin by inserting the insulin gene into a bacterial plasmid. Outline the roles of restriction endonucleases and DNA ligase in the process of inserting the human insulin gene into the plasmid.
5 marks, so the mark scheme is looking for about 5 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.
Written by Markquill to follow the Cambridge International syllabus. Markquill is independent and is not affiliated with or endorsed by Cambridge International.