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.Management Sciences
Category: General Microbiology
Spores are disinfected by_______________?
A. Glutaraldehyde
B. Betapropiolactone
C. Formaldehyde
D. Hexachlorophen
E. Both A & C
Immunoglobulin consists of________________?
A. 2 light, 2 heavy chains
B. 1 heavy, 2 light chains
C. 1 light, 1 heavy chain
D. 3 light, 1 heavy chain
Which of the following is not true of boiling water_____________?
A. It can kill hepatitis B virus
B. Used for sterilizing surgical instruments
C. Can kill mycobacterium tuberculosis
D. Can kill vegetative bacterial cells
Hot air oven is used for sterilization of all EXCEPT__________________?
A. Glassware
B. Rubber tubes
C. Sharp instrument
D. Liquid paraffin
Sterilization is a process in which_________________?
A. Kill all pathogenic micro-organisms
B. Kill all non-pathogenic micro-organisms in the environment
C. Deactivate all pathogens not spores
D. Deactivate all spores and dill pathogenic organism
By using phase contrast microscope_______________?
A. Internal structures are differentiated in living cells
B. Internal structures are differentiated in dead cells
C. Internal metabolic activities can be observed
D. External capsule formation can be observed
Graft versus host reaction is caused by_________________?
A. B-Lymphocytes
B. T-lymphocytes
C. Monocytes
D. Leukocytes
Out of the following hypersensitivity reactions, in which type a single dose of the antigen can act as both the sensitizing and shocking dose_______________?
A. Anaphylaxis
B. Arthus reaction
C. Serum sickness
D. Contact dermatitis
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