ELISA Steps 6-8
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Questions and Answers

Which of the following is the primary function of antibodies in immunoassay techniques?

  • To diagnose and detect diseases
  • To identify the presence of specific proteins
  • To label antigens with fluorescent dyes
  • To cause a color change in the presence of a specific antigen (correct)
  • What is the purpose of using monoclonal antibodies in the diagnosis and detection of disease?

  • Monoclonal antibodies can bind to a single specific antigen with high affinity
  • Monoclonal antibodies can be produced in large quantities from hybridomas
  • Monoclonal antibodies can be used in the ELISA technique to identify antigens
  • All of the above (correct)
  • What is the main advantage of using monoclonal antibodies over polyclonal antibodies?

  • Monoclonal antibodies can be produced in larger quantities
  • Monoclonal antibodies have fewer non-specific interactions
  • Monoclonal antibodies have higher affinity for their target antigen
  • Monoclonal antibodies recognize a single epitope on the antigen (correct)
  • How are hybridomas formed to produce monoclonal antibodies?

    <p>By fusing a B lymphocyte with a myeloma cell using polyethylene glycol (PEG)</p> Signup and view all the answers

    What is the primary purpose of using the ELISA technique in antibody-based assays?

    <p>To identify the presence of specific antigens in a sample</p> Signup and view all the answers

    What is the role of myeloma cells in the production of monoclonal antibodies?

    <p>Myeloma cells provide the immortality and continuous antibody production needed for hybridoma formation</p> Signup and view all the answers

    How do hybridomas differ from normal B lymphocytes in their ability to produce antibodies?

    <p>Hybridomas can only produce one specific antibody, while B lymphocytes can produce a variety of antibodies</p> Signup and view all the answers

    Why is polyethylene glycol (PEG) used in the production of hybridomas?

    <p>PEG is used to fuse the B lymphocyte and myeloma cell to create the immortal hybridoma</p> Signup and view all the answers

    What is the primary function of the selective media used in hybridoma production?

    <p>To screen and identify the specific hybridoma cells producing the desired antibody</p> Signup and view all the answers

    How are monoclonal antibodies extracted and purified from hybridoma cultures?

    <p>By batch culturing the secreting hybridomas in fermenters and extracting the pure antibody</p> Signup and view all the answers

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