Biotechnology can be defined as those set of practices whose end product is the modification of living organisms for human purposes. In the 21st century, biotechnology has come to occupy a central role in many disciplines. The field has paved way for the engineering of new organisms as well as pharmaceutical drugs. The development of biofuels, new forms of plastics as well as disease-resistant plants are some of the most frequent applications of this field. While understanding the long-term perspectives of the topics, the book makes an effort in highlighting their impact as a modern tool for the growth of the discipline. This book is a complete source of knowledge on the present status of this important field. It is appropriate for students seeking detailed information in this area as well as for experts.