B-cell development: Maturation, activation and differentiation
B-cell development: The development of plasma cell and memory B cells can be divided into three broad stages: Generation of mature, immunocompetent B-cells (maturation) Activation […]
Month: July 2020
T-cell maturation, activation and differentiation
T-cell maturation: The migration of progenitor T-cells from the early sites of hematopoiesis to the thymus takes place at about day 11 of gestation in […]
Transplant immunology: Types of graft, and transplant rejection
Transplantation immunology: The process of transfer of cells, tissues, or organs from one location to another with a motive of either repairing or replacing damaged […]
Vitamin B complex: Structure, coenzyme forms and Biological roles
Vitamins are organic compound which in small amounts is required to perform specific biological function for normal maintenance and optimum growth of body. Vitamin B […]
Vitamin C (Ascorbic acid): Properties, biosynthesis, biological functions and deficiency
Vitamin C is well known for its ability to treat Scurvy. It is water soluble vitamin, also know as ascorbic acid. Vitamin C has three […]
Vitamin E (Tocopherol): Biosynthesis, Biological roles and Deficiency
Vitamin E is also termed as anti-sterility vitamin It is a very powerful biological antioxidant. It is a common term for a group of closely […]
Vitamin K: Structure, Properties, Biological roles and Deficiency
Fat soluble vitamin that play a major role in post translational modification. Vitamin K also acts as a co-enzyme for carboxylase enzyme. It is the […]
Vitamin D: Synthesis, regulation, biological roles, sources and deficiency
Vitamin D is another fat-soluble vitamin. It has sterol like structure and therefore function like steroid hormones. 7-dehydrocholesterol is the animal source of Vit-D which […]
Vitamin A: Structure, derivatives, Properties, Biological roles and deficiency
Vitamin A comprises of a group of compounds collectively called retinoids which includes retinal, retinol, retinoic acid and a pro-vitamin A obtained from plant source […]
O-Nitrophenyl-β-D-Galactopyranoside (ONPG) test: Principle, Procedure and Results
Principle of ONPG test: Lactose is a disaccharide of glucose and galactose which is connected by a β-galactoside bond. Lactose fermenting bacteria consist of both […]