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MCQs

Total Questions : 43 | Page 4 of 5 pages
Question 31. . Small simple molecules are
  1.    poor antigens
  2.    rich antigens
  3.    moderate antigens
  4.    heterophilic antigens
 Discuss Question
Answer: Option A. -> poor antigens
Question 32. . The EBV-hybridoma technique
  1.    immortalizes the donor Bcells
  2.    facilitates the proliferation of antigen specific B cells
  3.    gives much higher hybridization frequencies
  4.    all of the above
 Discuss Question
Answer: Option D. -> all of the above
Question 33. . It is highly valued if the lymphocytes derived from the lymph node or tonsil tend to undergo fusion at
  1.    high frequencies
  2.    moderate frequencies
  3.    low frequencies
  4.    at no frequency
 Discuss Question
Answer: Option A. -> high frequencies
Question 34.  The primary B cell receptor is
  1.    IgD
  2.    IgG
  3.    IgA
  4.    IgE
 Discuss Question
Answer: Option A. -> IgD
Question 35. . Which of the following is incorrect?
  1.    MAbs can be used to diagnose or treat diseases
  2.    MAbs can be used in tumor scanning
  3.    MAbs canbe used in cancer diagnosis
  4.    MAbs can not be used in such non-infectious diseases as those of endocrine system
 Discuss Question
Answer: Option D. -> MAbs can not be used in such non-infectious diseases as those of endocrine system
Question 36. . The antigen-specific lymphocytes can be immortalized by which of the following method?
  1.    Transfection with tumor derived DNA
  2.    Hybridization with a suitable lymphoid tumor cell
  3.    Transformation following infection by Epstein-Barr virus (EB V)
  4.    All of the above
 Discuss Question
Answer: Option D. -> All of the above
Question 37. . Which type of cell actually secrets antibodies?
  1.    plasma cells
  2.    T cells
  3.    macrophages
  4.    dendritic cells
 Discuss Question
Answer: Option A. -> plasma cells
Question 38. . A cytokine that stimulates the activity of B and T cells is
  1.    lymphotoxin
  2.    interlukin-2
  3.    interlukin-1
  4.    all of these
 Discuss Question
Answer: Option B. -> interlukin-2
Question 39. . The hybrid cells can be propagated
  1.    in tissue culture
  2.    as ascites in peritoneal cavity of mice
  3.    both (a) and (b)
  4.    none of these
 Discuss Question
Answer: Option C. -> both (a) and (b)
Question 40. . Which of the following is correct?
  1.    rabbits do not make myelomas whereas mice are unable to synthesize antibodies
  2.    rabbits do not make myelomas whereas mice are able to synthesize antibodies
  3.    rabbits make myelomas whereas mice are unable to synthesize antibodies
  4.    rabbits make myelomas whereas mice are able to synthesize antibodies
 Discuss Question
Answer: Option A. -> rabbits do not make myelomas whereas mice are unable to synthesize antibodies

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