CONTENTS Chapter 1 Sexual Reproduction in Flowering Plant Chapter 2 Principles of Inheritance and Variation Chapter 3 Molecular Basis of Inheritance Chapter 4 Microbes in Human Welfare Chapter 5 Organisms and Populations Chapter 6 Ecosystem Chapter 7 Biodiversity and Conservation Chapter 8 Human Reproduction Chapter 9 Reproductive Health Chapter 10 Evolution Chapter 11 Human Health and Disease Chapter 12 Biotechnology: Principles and Processes Chapter 13 Biotechnology and its Applications