Genetic engineering has been studied for a number of years for understanding the formation of cells and cell structures as well as the processes involved in evolution. The scientific advancements in the field of genetic engineering and biotechnology have resulted in the manipulation of genes of organisms as well as plants to enhance their traits for commercial purposes. Protein expression and DNA sequencing are key topics of research in this field. This book on genetic engineering and biotechnology discusses the theories and practices related to genes and genetic modification. 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 an essential guide for both academicians and those who wish to pursue this discipline further.