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MCQs

Total Questions : 191 | Page 10 of 20 pages
Question 91. The role of the M cell is to
  1.    trap virus in mucus and prevent entry
  2.    induce apoptosis in virus-infected small intestinal epithelia cells
  3.    pass bacteria or virus to underlying macrophages for processing and presentation of antigen
  4.    they use their cilia to propel mucus out of the small intestine
 Discuss Question
Answer: Option C. -> pass bacteria or virus to underlying macrophages for processing and presentation of antigen
Answer: (c).pass bacteria or virus to underlying macrophages for processing and presentation of antigen
Question 92. VDRL test is an example of
  1.    Tube test
  2.    Ring test
  3.    Slide test
  4.    none of these
 Discuss Question
Answer: Option C. -> Slide test
Answer: (c).Slide test
Question 93. Weil-Felix reaction is based on sharing of antigens between
  1.    sheep RBCs and EB virus
  2.    mycoplasma and human O group RBCs
  3.    rickettsial antigens and antigens of certain strains of Proteus
  4.    none of these
 Discuss Question
Answer: Option C. -> rickettsial antigens and antigens of certain strains of Proteus
Answer: (c).rickettsial antigens and antigens of certain strains of Proteus
Question 94. In which of the following case a large lattice is formed?
  1.    Antibody is in excess
  2.    Antigens and antibodies are in optimal proportion
  3.    Antigen is in excess
  4.    None of these
 Discuss Question
Answer: Option B. -> Antigens and antibodies are in optimal proportion
Answer: (b).Antigens and antibodies are in optimal proportion
Question 95. Precipitation reaction is relatively less sensitive for the detection of
  1.    antigens
  2.    antigen-antibody complexes
  3.    antibodies
  4.    complement
 Discuss Question
Answer: Option C. -> antibodies
Answer: (c).antibodies
Question 96. Ring test is used for
  1.    C-reactive protein test
  2.    Ascoli's thermoprecipitation test
  3.    typing of streptococci and pneumococci
  4.    all of the above
 Discuss Question
Answer: Option D. -> all of the above
Answer: (d).all of the above
Question 97. Agglutination reaction is more sensitive than precipitation for the detection of
  1.    antigens
  2.    antibodies
  3.    complement
  4.    antigen-antibody complexes
 Discuss Question
Answer: Option A. -> antigens
Answer: (a).antigens
Question 98. Precipitation reaction can be converted into agglutination reaction by coating soluble antigen onto
  1.    bentonite particles
  2.    RBCs
  3.    latex particles
  4.    all of these
 Discuss Question
Answer: Option D. -> all of these
Answer: (d).all of these
Question 99. Commercially available ELISA kits are used for the detection of
  1.    rotavirus
  2.    hepatitis B surface antigen
  3.    anti-HIV antibodies
  4.    all of these
 Discuss Question
Answer: Option D. -> all of these
Answer: (d).all of these
Question 100. Monoclonal antibody production requires
  1.    mouse splenic lymphocytes
  2.    mouse myeloma cells
  3.    both (a) and (b)
  4.    none of these
 Discuss Question
Answer: Option C. -> both (a) and (b)
Answer: (c).both (a) and (b)

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