ISC 12th Biology Blueprint 2025: Check Chapter Wise Weightage
ISC 12th Biology Blueprint 2025 is available her. Students can check Chapter Wise Weightage below.
ISC 12th Biology Blueprint 2025: The Council for the Indian School Certificate Examinations (CISCE) has scheduled to conduct the Biology examination on March 21, 2025 at 2 PM. Candidates can check the ISC 12th Biology Blueprint 2025 here for their reference. The chapter-wise marks distribution is unofficial and therefore it might have minor changes but the unit-wise distribution will strictly be followed in the question paper. Candidates can check the ISC 12th Biology blueprint for Reproduction, Genetics and Evolution, Biology and Human Welfare, Biotechnology and its Applications, and Ecology and Environment is available below.
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ISC 12th Biology Blueprint 2025: Check Chapter Wise Weightage
Candidates can check the ISC 12th Biology Blueprint 2025 Chapter Wise Weightage in the table below.
| Unit | Chapter Name | Total Weightage |
| 1. Reproduction | Sexual reproduction in flowering plants | 6 (without options), 9 (with options) |
| Human Reproduction | 5 (without options), 7 (with options) | |
| Reproductive Health | 5 (without options), 7 (with options) | |
| 2. Genetics and Evolution | Principles of inheritance and variation | 5 (without options), 7 (with options) |
| Molecular basis of Inheritance | 4 (without options), 6 (with options) | |
| Evolution | 6 (without options), 9 (with options) | |
| 3. Biology and Human Welfare | Human Health and Diseases | 8 (without options), 11 (with options) |
| Microbes in Human Welfare | 6 (without options), 8 (with options) | |
| 4. Biotechnology and its Applications | Biotechnology - Principles and processes | 5 (without options), 7 (with options) |
| Biotechnology and its applications | 5 (without options), 8 (with options) | |
| 5. Ecology and Environment | Organisms and Populations | 6 (without options), 8 (with options) |
| Ecosystem | 4 (without options), 6 (with options) | |
| Biodiversity and its Conservation | 5 (without options), 7 (with options) | |
| Total | 70 (without options), 100 (with options) | |
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