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MCQs

Total Questions : 51 | Page 2 of 6 pages
Question 11. Alum is an effective adjuvant because it
  1.    is immunogenic for stem cells
  2.    slows the release of antigen
  3.    is immunogenic for T cells
  4.    disaggregates the antigen.
 Discuss Question
Answer: Option C. -> is immunogenic for T cells
Question 12. A secondary antibody is an antibody that
  1.    has been used in prior experiments
  2.    is produced in boostered animals
  3.    is synthetically produced
  4.    binds to another antibody
 Discuss Question
Answer: Option D. -> binds to another antibody
Question 13. Fab fragment has
  1.    two antigen binding site
  2.    one antibody binding site
  3.    one antigen binding site
  4.    two antibody binding site
 Discuss Question
Answer: Option C. -> one antigen binding site
Question 14. The main function of antibodies is to
  1.    kill all the foreign bodies
  2.    protect the circulatory system
  3.    chemically combine with the antigen which induces it, inactivate the antigen and protect the body from disease
  4.    generate antigens, thus conferring immunization
 Discuss Question
Answer: Option C. -> chemically combine with the antigen which induces it, inactivate the antigen and protect the body from disease
Question 15. The immunoglobulin fold is
  1.    found six times in the IgG molecule
  2.    found only in IgG molecules
  3.    both (a) and (b)
  4.    a β-barrel composed of a three- and a four-stranded antiparallel β-sheet
 Discuss Question
Answer: Option D. -> a β-barrel composed of a three- and a four-stranded antiparallel β-sheet
Question 16. Monoclonal antibodies were first produced by
  1.    Georges Kohler and Cesar Milstein
  2.    Edward Jenner and Louis Pasteur
  3.    Selman Waksman
  4.    Sarkar and Sommer
 Discuss Question
Answer: Option A. -> Georges Kohler and Cesar Milstein
Question 17. A polyclonal antibody response
  1.    occurs during the lag phase of the immune response
  2.    is produced by several B cells recognizing different pitopes on the same antigen
  3.    is produced only in response to polymeric antigens
  4.    violates clonal selection
 Discuss Question
Answer: Option B. -> is produced by several B cells recognizing different pitopes on the same antigen
Question 18. Each IgA antibody molecule consists of
  1.    two polypeptide chain and has two antigen binding site
  2.    two polypeptide chain and has one antigen binding site
  3.    three polypeptide chain and has two antigen binding site
  4.    four polypeptide chain and has two antigen binding site
 Discuss Question
Answer: Option D. -> four polypeptide chain and has two antigen binding site
Question 19. Antibodies in the human immune system can identify approximately 108 different molecules Which one of the following is correct?
  1.    Most of these antibodies recognize proteins
  2.    Most of these antibodies recognize small organic molecules
  3.    Many of these molecules are self-antigens
  4.    This diversity is generated from 108 different immunoglobin genes
 Discuss Question
Answer: Option A. -> Most of these antibodies recognize proteins
Question 20. Antibodies of the IgG class
  1.    All of these
  2.    are secreted into the bloodstream
  3.    are glycoproteins
  4.    consist of four subunits
 Discuss Question
Answer: Option A. -> All of these

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