Arihant’s All in One has been a favourite and first choice of teachers as well as students since its first edition. All in One Biology has been designed for the students of Class XII. The present book for Class XII Biology has been designed to ensure Complete Study, Complete Practice and Complete Assessment. The whole syllabus has been divided into 16 chapters coveringReproduction in Organisms, Sexual Reproduction in Flowering Plants, Human Reproduction, Reproductive Health, Principles of Inheritance, Molecular Basis of Inheritance, Evolution, Human Health & Diseases, Strategies for Enhancement in Food Production, Microbes in Human Welfare, Biotechnology Principles & Processes, Biotechnology & Its Applications, Organisms & Environment, Ecosystem, Biodiversity &Its Conservation and Environmental Issues. The book has been designed strictly in sync with the latest CBSE syllabus & Biology Class XII NCERT Textbook, with each chapter divided into individual topics for better understanding. Detailed theoretical content supported by llustrations, tables, flow charts, etc. has been provided in the book to help in effective comprehension of the concepts. The book contains all types of questions like Very Short Answer Type, Short Answer Type, Long Answer Type, HOTS and Value Based Questions.These Topicwise-Chapterwise questions cover NCERT Questions, Previous Years’ Examination Questions as well as other important questions from the examination point of view. Solutions and explanations to all the questions have been given to facilitate easy learning and understanding. At the end of each chapter, CBSE Examinations Archive section covers questions asked in previous years’ Class XII CBSE Board Examinations. Chapter Assessment is provided at the end of each chapter to help students assess their level of understanding. For thorough practice and to give students a real feel of the examination five Sample Question Papers have been given after the chapterwise study. CBSE Examination Paper 2016 (All India & Delhi) has been given at the end of the book with complete solutions to give the students an insight into the current exam pattern and types of questions asked therein. Also the book covers CBSE Sample Question papers which will give the students an idea about the types of questions which can be expected in the forthcoming examination. Additionally, excerpts from the topper’s answer sheets have also been given at the end of the book.