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Producing Monoclonal Antibodies (biology Only) (GCSE Biology)

The following is a GCSE Biology test covering 'Producing Monoclonal Antibodies (biology Only)' from the broader topic Infection And Response. The test is geared towards the AQA exam board style syllabus.
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A diagnostic lab wants to ensure a monoclonal antibody test does not give false positives due to cross-reaction. Which approach would best check specificity?
What does the term “epitope” refer to in monoclonal antibody production?
What is the purpose of using a selection medium (e.g., HAT medium) after fusing lymphocytes and myeloma cells?
How can monoclonal antibodies be used to deliver a drug specifically to cancer cells?
Which of the following best describes a monoclonal antibody?
What is one reason monoclonal antibodies must be screened and validated after large-scale production?
During hybridoma production, why might researchers perform ELISA (enzyme-linked immunosorbent assay) on culture supernatants?
If a monoclonal antibody used in a diagnostic strip is enzyme-labelled, what will happen at the test area when the antibody–antigen complex is present?
What is one limitation of monoclonal antibody therapies compared with small-molecule drugs?
Which step directly follows identifying a hybridoma that secretes the desired antibody?
Which ethical concern is most often raised about traditional methods of producing monoclonal antibodies using mice?