Biotechnology is a technology based on biological science. It deals with the wide area of Science including living system and organisms to develop or mold products. Humankind has used biotechnology in agriculture, food products, and medicine. It often overlaps with the field of molecular biology, bio-engineering, biomedical engineering, bio-manufacturing, molecular engineering, etc. Running Behind 20th and early 21st centuries, biotechnology has expanded to include new and diverse science such as genomics, recombinant gene techniques, applied immunology, and development of pharmaceutical therapies, animal tissue culture, plant tissues culture, tissue engineering, stem cells and cell culturing etc.