Biotechnology is a recently developed domain of research involving new techniques that have arisen out of interdisciplinary interaction and comprises of genetic engineering, immobilization of biocatalytic systems, cultivation of animal, plant and microbial cells, development of fused cell techniques and bioengineering process and system. This book Introduction to Biotechnology; compiled in two volumes deals with different steams of science like microbiology, biochemistry and genetics and the application of scientific and engineering principles to the processing of materials by biological agents to produce goods and services.