The book embodies 22 chapters covering various important disciplines of biotechnology, such as cell biology, molecular biology, molecular genetics, biophysical methods, genomics and proteomics, metagenomics, enzyme technology, immune-technology, transgenic plants and animals, industrial microbiology and environmental biotechnology. The book is illustrative. It is written in a simple language so that the students can easily grasp the matter. Possible questions have been written at the end of each chapter so that the matter can be thoroughly understood. Glossary of some important technical terms has been incorporated. Subject index has been given at the end of the book so that the students may search the related topics with complete case.