Biotechnology is the branch of science where living organisms are used to improve the quality of product. Genetic engineering or recombinant DNA technology are the tools of biotechnology where genetic material or DNA of the host organisms is used to obtain product.
Biotechnology has wide applications in the field of medicine like genetically engineered insulin, gene therapy and molecular diagnosis. Transgenic animals are also the result of biotechnology. Bt cotton was also generated with the help of biotechnology.