It is our endeavor to explain the methods of experiments step by step to make it understandable easily by the students and imbibe the theory and technique of each and every experiment. They may develop skill to perform experiments efficiently and imbibe the technique. The theory and method of calculations where ever necessary are given in exhaustive way. The book will be useful for students of various courses like BSc (H) Biotech, B. Tech. Biotechnology/ Bioinformatics, BSc Pharmaceutical, B. Sc. Viriology and other under graduate science courses.