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  • Question
  • In Rocket Immunodiffusion the length of the rocket is


  • Options
  • A. proportional to the amount of antibody placed in each well
  • B. inversely proportional to the amount of antibody placed in each well
  • C. inversely proportional to the amount of antigen placed in each well
  • D. proportional to the amount of antigen placed in each well

  • Correct Answer
  • proportional to the amount of antigen placed in each well 


  • Immunological Techniques problems


    Search Results


    • 1. What would happen if the anti-human Ig-conjugate is not washed free of the well before the substrate is added?

    • Options
    • A. The ELISA would not develop when the substrate was added
    • B. The ELISA would develop normally
    • C. All wells would show uniform over-development due to unbound and excess anti-human Ig enzyme conjugate
    • D. None of the above
    • Discuss
    • 2. Immunoaffinity chromatography can be used in biochemical applications to

    • Options
    • A. break down antibody structure
    • B. purify protein antigen
    • C. break down antigen and analyze quantitatively
    • D. none of the above
    • Discuss
    • 3. Which of the following is an immunoelectrophoresis technique?

    • Options
    • A. Two-dimensional immunoelectrophoresis
    • B. Counterimmunoelectrophoresis
    • C. Coimmunoelectrophoresis
    • D. Both (a) and (b)
    • Discuss
    • 4. An antigen preparation and an antibody preparation are tested by immunodiffusion. Three bands are found, indicating that

    • Options
    • A. there was more than one antigen
    • B. the antibody was impure
    • C. the temperature was too high
    • D. there was one antibody and one antigen
    • Discuss
    • 5. Which of the following is an immunodiffusion test?

    • Options
    • A. Double-diffusion
    • B. Gel diffusion
    • C. Ouchterloney technique
    • D. All of these
    • Discuss
    • 6. Agarose a porous matrix used in various molecular biology technique is made by repetitive units of

    • Options
    • A. maltose
    • B. agarobiose
    • C. agar
    • D. none of these
    • Discuss
    • 7. In Counter immunoelectrophoresis

    • Options
    • A. electrophoresis will drive the antibody and antigen parallel to each other
    • B. electrophoresis will drive the antibody and antigen toward each other
    • C. the antibody will migrate towards anode
    • D. the antibody will migrate towards cathode
    • Discuss
    • 8. DNA- footprinting is a suitable technique for identifying which of the following?

    • Options
    • A. Particular mRNA in mixture
    • B. Particular t-RNA in mixture
    • C. Introns within DNA
    • D. Protein binding site within DNA
    • Discuss
    • 9. Immunoelectrophoresis techniques are designed to separate the mixture components from each other by using electrophoresis

    • Options
    • A. prior to reaction with antibody
    • B. prior to reaction with antigen
    • C. after reaction with antibody
    • D. after reaction with antigen
    • Discuss
    • 10. The movement of molecules across a membrane by passive transport does not require

    • Options
    • A. an input of metabolic energy
    • B. internal energy
    • C. vibrational energy
    • D. none of these
    • Discuss


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