S. John Vennison, Ph.D., is Lecturer in the Department of Biotechnology, Anna University, Tiruchirappalli. He has more than 10 years of teaching experience and 18 years of research experience in the field of genetic engineering. He has published several research papers in the national and international journals. His research areas include molecular biology and biotechnology. A recipient of the Visiting Scientist Award, 1995 by UNESCO, Dr. Vennison is a lifemember of Biotech Research Society of India.