(A) IgA
(B) IgD
(C) IgM
(D) IgG
Natural transfer of Igs from mother to fetus is?
(A) Active immunity
(B) Passive immunity
(C) Non-specific
(D) Artificial immunity
__ is NOT sign of inflammation.
(A) Sweating
(B) Pain
(C) Swelling
(D) Redness
Helper T cell does not activate?
(A) B-cells
(B) Macrophages
(C) T-cytotoxic cells
(D) Mast cells
Immunogenicity of an antigen is related with?
(A) Foreignness
(B) Chemical nature
(C) Immune response
(D) None of these
__ does not stimulate phagocytes.
(A) Cytokines
(B) C3b
(C) Histamine
(D) γ-IFN
Due to acidic nature of their protoplasm, bacteria have affinity for:
(A) Basic dyes
(B) Acidic dyes
(C) Neutral dyes
(D) All of the above
Most effective practical way of sterilization is:
(A) Boiling
(B) Autoclaving
(C) Alpha rays
(D) Gamma rays