Antigen & Antibody: While discussing about ‘self’ and ‘non-self’, we got a broad idea of antigen. Definition and Properties of an antigen An antigen is any foreign molecule that can…
Defence Mechanisms in the Body There are four defence mechanisms in our body Immunity to defend the body from infections. Metabolic defence to metabolize and detoxify foreign chemicals. Stoppage of…
Biology – A Science of Exceptions Physical Sciences have sets of principles or laws which are universal in their application, on the other hand life sciences have very few universally…
Branches of Biology These are the main branches of biology: Aerobiology – The study of airborne organic particles Agriculture – The study of producing crops from the land, with an…
Research Structural Molecular biology is the study of biology at a molecular level. This field overlaps with other areas of biology, particularly with genetics and biochemistry. Molecular biology chiefly concerns…
Foundations of Modern Biology Much of modern biology can be encompassed within five unifying principles: Cell theory, Evolution, Genetics, Homeostasis and Energy. Cell Theory Cells in culture, stained for keratin…
Historical Background of Biology The term of Biology is derived from the Green word (bios, “life” and the suffix, -logia, “study of”). Although biology in its modern form is a…
BIOTECHNOLOGY At home we prepare food items such as yoghurt (curd), cake, bread, idli and dosa etc. by the action of tiny microorganisms, the bacteria and fungi. Brewers use yeast…
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