¿This book covers a range of topics related to genetic engineering and its practical applications and provides a comprehensive overview of genetic engineering, from the basics of DNA manipulation to the latest techniques and applications. ¿It is primarily focused on xenotransplantation, production of therapeutic proteins in plants, and nanocomposite-based agriculture delivery systems. ¿The book explores a range of key techniques used in genetic engineering, including polymerase chain reaction (PCR, genome engineering and their potential applications in agriculture. ¿The book places special emphasis on the use of plants as systems for the production of recombinant proteins and peptides, highlighting their potential as a cost-effective and scalable alternative to traditional systems. ¿It a valuable resource for students, researchers, and professionals working in genetics, biotechnology, and related fields.