HomeNCERT Old Book for Class 12 Biology NCERT Old Book for Class 12 Biology Ch - 1 : Reproduction in Organisms Ch - 2 : Sexual Reproduction in Flowering Plants Ch - 3 : Human Reproduction Ch - 4 : Reproductive Health Ch - 5 : Principles of Inheritance and Variation Ch - 6 : Molecular Basis of Inheritance Ch - 7 : Evolution Ch - 8 : Human Health and Diseases Ch - 9 : Strategies for Enhancement in Food Production Ch - 10 : Microbes in Human Welfare Ch - 11 : Biotechnology Principles and Processes Ch - 12 : Biotechnology: and its Application Ch - 13 : Organisms and Populations Ch - 14 : Ecosystem Ch - 15 : Biodiversity and Conservation Ch - 16 : Environmental Issues To support me in my journey you can donate by : 1) Paytm : 8595657896 Phonepe : 8595657896 Google pay – 8595657896 2) Or, Through Bank Account Anil Kumar Account No: 3583022531 IFSC: CBIN0283688 Central Bank of India, Vikaspuri, Delhi. Even a small contribution by you will be of great help for me.