The basic concepts and novel applications in the field of genetic engineering are described in this book. Leading experts from diverse nations around the globe have made important contributions on the fundamental applications and responsibilities of the powerful genetic engineering tools now accessible for adjusting the molecules, characteristics and pathways of species of industrial and medicinal significance. After several years of researching on such instruments, we now see a better technology and developed guidelines to keep away accidental damage to our and other species and environment, while trying to resolve the organic, medicinal and technological challenges of society and engineering. Data on thermo-stabilization of luciferase and engineering of the phenylpropanoid path in various organisms has been analyzed in this book thoroughly. Additional capable revitalization of transgenic soybean, viral defiant plants and a fresh advance for speedily showing features of recently discovered animal development hormones exemplify the modern expertise of genetic engineering. This book thoroughly explains certain aspects of genetic engineering to help our readers in gaining more knowledge regarding this science.