Type I hypersensitivity is mediated by which of the following immunoglobulins ?
A. IgA
B. IgG
C. IgM
D. IgE
General Microbiology
Active artificial immunization is induced by the administration of all of the following EXCEPT______________?
Active artificial immunization is induced by the administration of all of the following EXCEPT______________?
A. Bacterial products
B. Toxoids
C. Vaccines
D. Antitoxins
Immunity that is conferred to the foetus by transfer of IgG and IgA antibodies is called as______________?
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
The protective effects breast milk are known to be associated with______________?
The protective effects breast milk are known to be associated with______________?
A. IgM antibodies
B. Lysozyme
C. Mast cells
D. IgA antibodies
IL-1 and TNF a during inflammation are secreted by______________?
IL-1 and TNF a during inflammation are secreted by______________?
A. Plasma cells
B. Activated macrophages
C. Lymphocytes
D. Platelet
Virus infected cell is killed by________________?
Virus infected cell is killed by________________?
A. Interferons
B. Macrophages
C. Neutrophils
D. Autolysis
Prozone phenomenon is due to______________?
Prozone phenomenon is due to______________?
A. Disproportionate antigen antibody levels
B. Excess antigen
C. Excess antibody
D. Hyper immune reaction
Most sensitive test for antigen detection is_______________?
Most sensitive test for antigen detection is_______________?
A. Radioimmuno Assay
B. ELISA
C. Immunoflourescence
D. Passive hemaglutination
Complement binding immunoglobin via the classical pathway is_______________?
Complement binding immunoglobin via the classical pathway is_______________?
A. IgG & igM
B. IgG & IgA
C. IgG & IgD
D. IgD & IgE
Function of Ig A is________________?
Function of Ig A is________________?
A. Acts as a mucosal barrier for infection
B. Circulating antibody
C. Kills virus infected cells
D. Activates macrophages