Table of Contents Unit I : Reproduction Reproduction in Organisms Sexual Reproduction in Flowering Plants Human Reproduction Reproductive Health Unit II : Genetics and Evolution Principles of Inheritance and Variation Molecular Basis of Inheritance Evolution Unit III : Biology in Human Welfare Human Health and Disease Strategies for Enhancement in Food Production Microbes in Human Welfare Unit IV : Biotechnology Biotechnology : Principles and Processes Biotechnology and its Applications Unit V : Ecology Organisms and Populations Ecosystem Environmental Issues Biodiversity and Conservation Answers and Hints to Mock Tests (1 to 16)