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MCQs

Total Questions : 92 | Page 4 of 10 pages
Question 31. In monoclonal antibody technology, tumor cells that can replicate endlessly are fused with mammalian cells that produce an antibody. The result of this cell fusion is a
  1.    hybridoma
  2.    myeloma
  3.    natural killer cell
  4.    lymphoblast
 Discuss Question
Answer: Option A. -> hybridoma
Answer: (a).hybridoma
Question 32. Preliminary clinical results with a humanized antibody against the interleukin-2 receptor have suggested the
  1.    absence of human immune response against murine proteins (HAMA) response
  2.    presence of HAMA response
  3.    poor recognition of immunoglobulin, Ig constant regions
  4.    all of the above
 Discuss Question
Answer: Option A. -> absence of human immune response against murine proteins (HAMA) response
Answer: (a).absence of human immune response against murine proteins (HAMA) response
Question 33. The cross linkage of antigens by antibodies is known as
  1.    agglutination
  2.    complement fixation
  3.    a cross reaction
  4.    all of these
 Discuss Question
Answer: Option A. -> agglutination
Answer: (a).agglutination
Question 34. 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)
Answer: (c).both (a) and (b)
Question 35. TC cells are important in controlling
  1.    virus infections
  2.    allergy
  3.    autoimmunity
  4.    all of these
 Discuss Question
Answer: Option D. -> all of these
Answer: (d).all of these
Question 36. The yield of the antibiotic depends upon
  1.    pH of the medium
  2.    age of the inoculum
  3.    composition of the medium
  4.    all of these
 Discuss Question
Answer: Option D. -> all of these
Answer: (d).all of these
Question 37. Fermentation medium for oxytetracyclin (terramycin) consist of
  1.    CSL, starch, (NH4)2 SO4, sodium chloride and CaCO3
  2.    CSL, (NH4)2 SO4, sodium chloride and CaCO3
  3.    CSL, starch,(NH4)2 SO4, ammonium chloride and CaCO3
  4.    CSL,(NH4)2 SO4, ammonium chloride and CaCO3
 Discuss Question
Answer: Option A. -> CSL, starch, (NH4)2 SO4, sodium chloride and CaCO3
Answer: (a).CSL, starch, (NH4)2 SO4, sodium chloride and CaCO3
Question 38. During which phase of growth of Penicillium chrysogenum maximum antibiotic production takes place
  1.    during the first phase
  2.    during the second phase
  3.    during the third phase
  4.    same in all the phases
 Discuss Question
Answer: Option B. -> during the second phase
Answer: (b).during the second phase
Question 39. PH of the fermentation medium for chlorotetracyclins is
  1.    5-6
  2.    6-7
  3.    7-8
  4.    8-9
 Discuss Question
Answer: Option A. -> 5-6
Answer: (a).5-6
Question 40. Chlorotetracyclin is soluble in
  1.    organic solvents
  2.    water
  3.    ether
  4.    all of these
 Discuss Question
Answer: Option B. -> water
Answer: (b).water

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