| CHAPTERS | 1 marks | 2 marks | 3 marks | TOTAL |
| Sexual Reproduction in flowering plants | – | 1 | – | 2 |
| Human Reproduction | 2 | – | – | 2 |
| Reproductive health | – | – | 1 | 3 |
| POI | 1 | – | 1 | |
| Molecular basis | 1 | 3 | 2 | 13 |
| Evolution | – | 3 | 1 | 9 |
| Human Health and disease | – | 4 | – | 8 |
| Microbes in human welfare | 1 | 1 | – | 3 |
| Biotechnology : principles | 1 | 2 | – | 5 |
| Biotechnology : applications | 1 | 3 | 1 | 10 |
| Organisms and populations | 2 | 2 | 1 | 9 |
| Ecosystem | – | 2 | 2 | 10 |
| TOTAL | 75 |
Plus Two – Second Term Chapter wise Weightage 2022
Plus Two – Second Term Chapter wise Weightage 2022 – Mathematics
Plus Two – Second Term Chapter wise Weightage 2022 – Physics
Plus Two – Second Term Chapter wise Weightage 2022 – Biology
Plus Two – Second Term Chapter wise Weightage 2022 – Chemistry
Plus Two – Second Term Chapter wise Weightage 2019
Plus Two – Second Term Chapter wise Weightage 2019 – Mathematics
Plus Two – Second Term Chapter wise Weightage 2019 – Physics
Plus Two – Second Term Chapter wise Weightage 2019 – Biology
Plus Two – Second Term Chapter wise Weightage 2019 – Chemistry
Plus One – Second Term Chapter wise Weightage 2022
Plus One – Second Term Chapter wise Weightage 2022 – Mathematics
Plus One – Second Term Chapter wise Weightage 2022 – Physics
Plus One – Second Term Chapter wise Weightage 2022 – Biology
Plus One – Second Term Chapter wise Weightage 2022 – Chemistry
