CAIE A Level Biology 9700 · Genetic technology
Haemophilia A is a genetic disorder caused by a deficiency of clotting factor VIII. Currently, patients are treated with factor VIII purified from donated human blood. A biotechnology company has developed a recombinant human factor VIII produced in genetically modified hamster cells. Outline the advantages of using this recombinant factor VIII instead of the blood-derived product.
4 marks, so the mark scheme is looking for about 4 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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