The book essentially covers the syllabus prescribed for B.Tech. Biotechnology. It cpvers basic and applied aspects of plant, animal and microbial life in simple and lucid manner. The various topics/chapters that follow attempt to reflect basic and applied concepts with emphasis on current developments and their relevance to present day needs. Students pursuing B.Sc., M.Sc. (Biotechnology), M.Sc. (Botany, Zoology, & Environmental Biology) will also find the book useful. A question bank of (500) questions both essay type/short essays and definitions is appended to help the students to cross check their learning.