Molecular biology is the study of biomolecules, their activities and interactions with each other in various systems of the cell. This area of study has relevance across other scientific fields of research such as genetics, bioinformatics, immunology, biochemistry, etc. Molecular cloning, gel electrophoresis and polymerase chain reaction are some of the important techniques of molecular biology. Different approaches, evaluations, methodologies and advanced studies in this field have been included in this book. While understanding the long-term perspectives of the topics, the book also makes an effort in highlighting their impact as a modern tool for the growth of this discipline. Scientists and students actively engaged in this field will find this book full of crucial and unexplored concepts.