Which one of the followings is not a component of CNS (central nervous system)?
A. Neuron
B. Astrocyte
C. Fibroblast
D. Microglia
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Which of the followings is not an immunologic method/assay?
A. Western blot
B. PCR
C. Elisa
D. Immunoprecipitation
What molecules are expressed on the surface of NK cells to manipulate the killing action?
A. Inhibitory receptor
B. Activating receptor
C. MHC I molecule
D. MHC II molecule
Antibodies can protect the host against invasion of pathogens through what methods?
A. Neutralization
B. Opsonization
C. Recruiting complement proteins
D. Antibody-dependent cell-mediated cytotoxicity
CD19 is expressed on what cells?
A. B-1 cells
B-2 cells
C. T cells
D. Regulatory B cells
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