Genetic engineering is a rapidly developing branch of biotechnology and is specifically useful for the development of agriculture. This book consists of contributions made by international experts on genetic engineering and biotechnology. This book traces the progress of this field and highlights some of its key concepts and applications through discussions on topics like genetics and plant breeding, agricultural chemistry, seed science, etc. This book is most suitable for students and academicians pursuing biotechnology and allied sciences. As this field is emerging at a rapid pace, the contents of this book will help the readers understand the modern concepts and applications of the subject.