Related Questions

Acquired Immune Deficiency Syndrome (AIDS) is caused by
A Bacteria
B Fungus
C Virus
D None of the Above
Doctors believe that some people are naturally immune _ AIDS.
A on
B at
C during
D to
In the immune system of the body
A The neutrophils are phagocytic cells.
B The antigen presenting cells include the langerhans' cells of skin.
C Germinal centres are absent from the spleen.
D Germinal centres produce B hymphocytes.
E The T cells mature both in the central and peripheral lymphoid tissues.
Immune blood group antibodies:
A Can cross placenta
B Can cause hemolytic disease of newborn
C Are IgM in type
D Occur naturally
E Cannot cause intra vascular red cell destruction
Immune thrombocytopenic purpura lTP is characterized by
A Splenomegaly
B Anaemia
C Shortened lifespan of platelets
D Increased level of anti-platelet antibodies
E Decreased megakaryocytes in the bone marrow
Tumors escape bodys immune surveillance by
A Selective overgrowth of antigen negative variants
B Reduced expression of MHC molecules
C Secretion of immuno suppressive factors by tumor cells
D Inhibition of regulatory T cells
E Inactivation of immuno regulatory pathways
Components of the innate immune system are
A Lectin pathway of complement activation
B Natural killer cells
C Macrophages
D CD8 T-cells
E B-cells
Followings are cell derived factors that participate in non-specific immune response
A Complement
B Interferon
C C-reactive protein
D Tumour Necrosis Factor (TN
E Lactic acid
Central tolerance of the immune system takes place in
A Bone marrow
B Thymus
C Lymph nodes
D Spleen
E Tonsils
Following are the statements about primary immune response
A Time of peak response generally 7-10 days
B Antibody affinity is lower
C Responding B cell is memory B cell
D IgG predominates
E Antibody affinity is higher

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