CAIE A Level Biology 9700 · Immunity
A new respiratory virus has emerged. Blood samples from recovered patients contain antibodies that bind specifically to the virus's surface spike protein. Using your knowledge of antibody structure and the hybridoma method, describe how the molecular structure of antibodies enables specific binding to antigens and outline how monoclonal antibodies with the same specificity can be produced and used in the treatment of viral infections.
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.
Describe means: Say what happens or what something is like, in order and with detail. You are not being asked why. If there is data, quote it: name the trend, then give figures with units at the points where it changes.
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