CAIE A Level Biology 9700 · Immunity

Immunity: explain question

Explain5 marksStandard

The hybridoma method is used to produce monoclonal antibodies for use in diagnostic tests. Explain how monoclonal antibodies are produced using this method and how their molecular structure allows them to be used to diagnose a specific disease in a patient.

How this question is marked

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.

Explain means: Give the reasons or the mechanism: why or how something happens. Link each point to the next with because, so or which means. A list of facts with no links usually loses the reasoning marks.

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