Introduction

Biotechnology refers to the long practiced skill of applying our knowledge of the molecular basis of life processes for the benefit of society. While classic examples of biotechnology include using bacteria and enzymes to produce cheeses and yeast to make bread and beer, modern applications exploit DNA based technologies such as immunology, biochemistry and microbiology to make new products or provide services to improve health care, agriculture, food and the environment. Over the past 20 years biotechnology has caused a profound revolution in science having significant technological and social implications.