Biotechnology:

Biotechnology is, perhaps. best defined as the  industrial utilisation  of biological  systems or processes.  In sense, therefore, biote(biology ha existed for thousands of years. The most ancient biotechnological art is fermentation. Living micro-organisms have been used  for centuries to make curds. condiments, cheese and vinegar,  to prepare dough for bread or bhatilras. and to brew alcohol. But today we know much more about these simple processes. With  thehelp of powerful microkcopes  and carefully done expe;iments  in the laboratory, we have come to under tatid that the tiny microbes involved  in these processes are small biochemical factories. And they can be used  for a variety of purposes, related to health, medicine. food, pollution  control ctc.