Moderate

A practical use of monoclonal antibodies is

Correct answer: A. treating some cancers and detecting pregnancy

  • A. treating some cancers and detecting pregnancy
  • B. sterilising surgical instruments
  • C. filtering blood in dialysis
  • D. grinding food in digestion

Explanation

Because each monoclonal antibody recognises one target, it can mark cancer cells for destruction or detect the hormone hCG in pregnancy tests. Their value lies in precision, not in physical processes.

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Biotechnology applies genetic engineering, cell culture and recombinant DNA methods to medicine and public health. The material includes production of insulin, vaccines and antibiotics, diagnostic techniques, gene therapy, genetically modified organisms and the ethical concerns surrounding manipulation of human genes.

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