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3.2 Monoclonal antibodies (HT only)

3.2 Monoclonal antibodies (HT only)

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Question 6
H

Blood that has been donated is screened for HIV using monoclonal antibodies before it is given to a patient.

a.

Give the part of HIV that the monoclonal antibody binds to.

[1]
b.

Explain why a monoclonal antibody is used, rather than an antibody that binds to several different pathogens.

[2]
c.

A person who was infected with HIV only a few days ago may give a negative test result. Suggest why.

[2]
d.

Suggest one reason why donated blood is screened for HIV before it is used.

[1]
Markscheme

3.2 Monoclonal antibodies (HT only) Questions

  1. GCSE
  2. /Biology
  3. /3.2 Monoclonal antibodies (HT only)

42 exam-style questions on AQA GCSE Biology 3.2 Monoclonal antibodies (HT only), covering 3.2.1 Producing monoclonal antibodies and 3.2.2 Uses of monoclonal antibodies. Each one has a worked solution and a mark scheme showing where the marks go.

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