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Oil and Grease are sterilized by________________?

  • (A)  Hot air oven
  • (B)  Auto claving
  • (C)  Irradiation
  • (D)  Ethylene dioxide
Submitted By :Ali Uppal


Which of the following is true about pasteurization ?

  • (A)  It kills bacteria and spores
  • (B)  It kills all bacteria except thermoduric bacteria
  • (C)  It kills 95% of microorganisms
  • (D)  Tubercle bacilli are destroyed
Submitted By :Ali Uppal


Portion of immunoglobulin molecule with molecular weight to 50000_________________?

  • (A)  Secretory piece
  • (B)  H chain
  • (C)  L chain
  • (D)  J piece
Submitted By :Ali Uppal


Prozone phenomenon is due to______________?

  • (A)  Disproportionate antigen antibody levels
  • (B)  Excess antigen
  • (C)  Excess antibody
  • (D)  Hyper immune reaction
Submitted By :Ali Uppal


Virus infected cell is killed by________________?

  • (A)  Interferons
  • (B)  Macrophages
  • (C)  Neutrophils
  • (D)  Autolysis
Submitted By :Ali Uppal


IL-1 and TNF a during inflammation are secreted by______________?

  • (A)  Plasma cells
  • (B)  Activated macrophages
  • (C)  Lymphocytes
  • (D)  Platelet
Submitted By :Ali Uppal


The protective effects breast milk are known to be associated with______________?

  • (A)  IgM antibodies
  • (B)  Lysozyme
  • (C)  Mast cells
  • (D)  IgA antibodies
Submitted By :Ali Uppal


Immunity that is conferred to the foetus by transfer of IgG and IgA antibodies is called as______________?

  • (A)  Active acquired immunity
  • (B)  Passive acquired immunity
  • (C)  Natural active immunity
  • (D)  Passive natural immunity
Submitted By :Ali Uppal


Submitted By :Ali Uppal


Submitted By :Ali Uppal