Non specific resistance is the defense of our body from any kinds of the pathogens. It includes skin and mucous membrane, phagocytosis, inflammation, fever, production of antimicrobial substances. 1. Skin and Mucus Membranes: Skin and mucus membranes provide the first step of defense to the body against invasion of the pathogen. It acts both as mechanical barrier as well as [...]
The following points highlight the nine important antigen-antibody reactions. They are: 1. Precipitation Reactions 2. Immunodiffusion Test 3. Counter Current Immunoelectroptioresis Test 4. Agglutination Reactions 5. Complement Fixation Reactions 6. Neutralization Reactions 7. Radioimmunoassay 8. Enzyme-Linked Immunosorbent Assay 9. Fluorescent Antibody Technique. 1. Precipitation Reactions: The reaction of soluble antigens with IgG or IgM antibodies to form a large interlocking [...]
In this article we will discuss about:- 1. Definition of MHC Molecules 2. Classes of MHC Molecules 3. Structure 4. Function 5. Gene Regulation. Definition of MHC Molecule: The term histocompatible refers to the individuals who the same tissues i.e. identical twins. This term is used to determine how identical two unrelated individuals are. In case of two histocompatible individuals, [...]