(A) Complement components
(B) T and B lymphocytes
(C) Cytokines
(D) Interferons
Category: Microbiology Mcqs
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Which of following mediates an initial response to viral infections by the innate immune system?
(A) Complement components
(B) T and B lymphocytes
(C) Cytokines
(D) Interferons
At what age does thymus reach its maximal size?
(A) During the first year of life
(B) Teenage years (puberty)
(C) Between 40 and 50 years of age
(D) After 70 years of age
Complement component C3 can be cleaved by:
(A) C3b
(B) C3bBb
(C) Factor B
(D) Factor D
Which one of the following is NOT a structural chain in class I MHC?
(A) Alpha-1
(B) Alpha-2
(C) Beta-1
(D) Beta-2
Light chains and heavy chains are joined by:
(A) Covalent bond
(B) Hydrogen bond
(C) di-sulphide bond
(D) ionic bond
APCs can be all but which of the following?
(A) B-cells
(B) Dendritic cells
(C) Macrophages
(D) T-helper cells
__ can recognize MHC I molecules.
(A) B-lymphocyte
(B) CD4 + lymphocyte
(C) CD8 + T lymphocytes
(D) Monocytes