CAIE A Level Biology 9700 · Immunity
A researcher wants to produce antibodies that specifically bind to a single protein antigen. She uses the hybridoma method to produce monoclonal antibodies. Compare the properties and production of monoclonal antibodies produced by the hybridoma method with those of polyclonal antibodies obtained from the serum of an immunised animal.
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.
Compare means: Give similarities or differences between two things, and say which side each point belongs to. Write each point as a pair, for example: A is X, whereas B is Y. Two separate descriptions rarely earn the marks.
Written by Markquill to follow the Cambridge International syllabus. Markquill is independent and is not affiliated with or endorsed by Cambridge International.