Cultivation of Bt cotton has been much in the news. The prefix Bt means
Bacillus thuringiensis (or Bt) is a Gram-positive, soil-dwelling bacterium, commonly used as a biological pesticide. During sporulation, many Bt strains produce crystal proteins (proteinaceous inclusions), called delta endotoxins, that have insecticidal action. This has led to their use as insecticides, and more recently to genetically modified crops using Bt genes. Alternatively, the Cry toxin may be extracted and used as a pesticide. These Cry toxins or proteins are coded by cry genes.
The term ‘Humulin’ is used for
HUMULIN N is a man-made insulin that is used to control high blood sugar in adults and children with diabetes mellitus.
Hybridoma technology has been successfully used in
Hybridoma technology has contributed to virtually all areas of biology and medicine and set the scene for important advances in cell biology and immunodiagnostics. Blood transfusion and transfusion medicine have benefited significantly from development in hybridoma technology, and this has resulted in the generation of a wide range of monoclonal antibodies to human blood group antigens. These antibodies have also had an impact on diagnostic techniques such as enzyme-linked immunosorbent assay and flow cytometry as well as on the application of therapeutic agents in the clinical environment. However, rapid advances in the development of knockout and transgenic mice as well as in nucleic acid-based immunization may well lead hybridoma technology into a new era.
A technology which has found immense use in solving cases of disputed parentage is
DNA fingerprinting is a technology which has found immense use in solving cases of disputed parentage.It is a technology that uses sequences of DNA to identify an individual. This technology was invented by Alec Jeffreys in the year 1984. Though about 99% of the DNA chunk is similar to all individuals the 1% contains a short sequence of repeats called as Variable number Tandem repeat sequence that is identical for each person which is an exceptional case of monozygotic twins.
First use of pure microbiological process in an industrial procedure was made by Chaim Weizmann in
In the early twentieth century, scientists gained a greater understanding of microbiology and explored ways of manufacturing specific products. In 1917, Chaim Weizmann first used a pure microbiological culture in an industrial process, using Clostridium acetobutylicum, to produce acetone, which was urgently needed by the United Kingdom to manufacture explosives during the World War I (WWI). Biotechnology has also led to the development of antibiotics. In 1928, Alexan-der Fleming discovered the mold Penicillium.