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.Management Sciences
Category: General Microbiology
Prozone phenomenon is due to______________?
0
A. Disproportionate antigen antibody levels
B. Excess antigen
C. Excess antibody
D. Hyper immune reaction
Complement factor through which common pathway begins___________________?
A. C3
B. C5
C. C2
D. Protein B
In penicillin allergy, penicillin acts as a_______________?
A. Hapten
B. Carrier
C. Super antigen
D. Toxin
Blood agar is________________?
A. Simple media
B. Transport media
C. Enriched media
D. Differential media
compared with autoclave, use of a dry heat over for sterilization has the following disadvantages______________?
A. Time-consuming
B. Less effective
C. Causes instruments to rust
D. Causes sharp instruments to dull
The key cell types involved in the acquired immunity include all EXCEPT________________?
A. B lymphocytes
B. Erythrocytes
C. T lymphocytes
D. Antigen presenting cells (APC
All are not true for cultivation of anaerobic organisms except_______________?
A. Incubator
B. anaerobic jar
C. Refrigerator
D. Centrifuge
IgG antibodies have a half-life of approximately_______________?
A. 1 hour
B. 1 day
C. 1 week
D. 1 Month
An example of naturally acquired passive immunity is__________________?
A. Hepatitis vaccination
B. Gamma globulin injection
C. Immune blood transfusion
D. Placental transfer of antibodies
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