3. Which of the following assays antibody from a sample by first allowing it to bind to an antigen secured on a substrate, and then exposing these complexes to a second antibody that is attached to a reporter enzyme?

Question 3
3. Which of the following assays antibody from a sample by first allowing it to bind to an antigen secured on a substrate, and then exposing these complexes to a second antibody that is attached to a reporter enzyme?
 
 
  • radioimmune assay

     

  • direct ELISA

     

  • indirect ELISA

     

  • sandwich ELISA

     

  • competitive ELISA