TNPSC General Tamil Important Questions with Answers Download as PDF

1. Gregor Johann Mendel conducted the first ever scientific experimental Study on heredity.Mendel selected tall and dwarf garden pea plants, Pisem Sativum for his experiments.
2. Charles Darwing solely with theory of Evolution.
3. Jean Baptiste Lamarck postulated the use and Disuse Theory.
4. The first human-like beings the Hominid. It was called Homo habilis.
5. The Neanderthal man who lived in East and Central Asia.
6. Archaic Homo Sapiens arose in South Africa.
7. DNA stands for - Deoxyribonucleic acid
8. rDNA Technology - Recombinant DNA Technology
9. Brewing Industry - Fermentation of alcoholic beverages like beer, wine etc.
10. Enzyme Technology - Enzymes are bio-catalysts that speed up reaction in cells.
11. Antibiotics - These are substances produced by some microbes that help in increasing the immunity of human beings.
12. Organic Acids - Acetic acid is used for the production of vinegar.
13. Vitamins - These are chemical compounds present in variable minute quantities in natural foodstuffs.
14. Vaccines - Vaccines are substances that confer immuity against specific diseases.
15. Steroid - They are derivatives of lipids. For example Cholesterol containing steroid drugs like prednisolone, produced from fungus Rhizopus.
16. Monoclonal Antibodies - These are the antibodies produced from cloned cells by hybridoma technology.
17. Cloning - Cloning is an experimental techniques, wherein a group of morphologically and genetically identical organisms are produced.
18. In 1791, Edward Jenner coined the term vaccine and the term Vaccination for productive inoculation.
19. Natural Clones - The natural clones are formed through a natural process. (DNA Replication)
20. Induced Clones - The induced clones (Artificial) are developed by nuclear transfer into the host cell. For Example cloning of Dolly sheep.
21. Doly was a cloned sheep, developed by Dr.Ian Wilmut and his colleagues in Roselined in Scotland in July 1996.
22. Vitamin B12 - Biotechnologically synthesized vitamin B12 is used to cure pernicious anaemia.