Biology Exam Question 21: Biochemical Pathways and Enzymes
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Questions and Answers

What is the main difference between conventional vaccines and the non-conventional vaccine containing mRNA as described in the text?

  • Conventional vaccines use a dead or inactivated pathogen, while the mRNA vaccine codes for a protein to be produced by the individual's cells. (correct)
  • Conventional vaccines are faster to produce compared to mRNA vaccines.
  • Conventional vaccines are more effective in stimulating the immune response than mRNA vaccines.
  • Conventional vaccines contain mRNA while non-conventional vaccines do not.
  • Why do scientists investigate whether a non-conventional vaccine could be developed for cancer?

  • Because conventional vaccines are not effective against viruses that cause cancer.
  • Because most cancers are not caused by viruses. (correct)
  • Because non-conventional vaccines have been proven to have no side effects.
  • Because conventional vaccines take many months to produce.
  • How does the human papillomavirus vaccine work in preventing cervical cancer?

  • By causing the immune response to produce high levels of antigens.
  • By containing antigens from the virus that stimulate an immune response. (correct)
  • By creating virus-like particles that mimic cancer cells.
  • By directly killing cancer cells in the cervix.
  • Why do conventional vaccines contain a dead or inactivated version of a pathogen?

    <p>To trigger an immune response without causing disease.</p> Signup and view all the answers

    What is the purpose of mRNA in the non-conventional cancer vaccine described in the text?

    <p>To code for the production of a protein by the individual's cells.</p> Signup and view all the answers

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