Comprehensive Life Sciences offers an updated understanding of modern life sciences while covering both classical and applied aspects of learning. It is designed to encompass the fundamental concepts of life sciences in two volumes (Volume I and Volume II). It meets the practical requirements of both undergraduate and postgraduate students across all disciplines of life sciences and medical science in India. This volume includes the following chapters: ?Chemistry of Biomolecules?, ?Metabolism of Substrates?, ?Molecular Biology?, ?Cell Biology?, ?Developmental Biology?, ?Diversity of Life?, and ?Research Techniques in Biology?. Each chapter is equipped with an enriched theory followed by gradient-based (Level 1 and Level 2) practice problems with solutions. The book is written in lucid language to enable better understanding of difficult concepts. A separate chapter is included on research-based data analytical skills. At the end of the book two chapters are exclusively dedicated to research-based problems with solutions. The book puts forward a concise and smart approach to learning and will appeal to the learners of life sciences.