PYQ LensCBSE Class 12 Biology 2026 Paper, Set 57/3/2
This board paper has 33 questions for 70 marks, from 13 chapters. See where the marks come from, then practise it on PYQ Lens with marking schemes and teacher explanations.
- 33Questions
- 70Marks
- 13Chapters
Chapters in this paper
| Chapter | Questions | Marks |
|---|---|---|
| Human Health and Disease | 5 | 9 |
| Biotechnology: Principles and Processes | 4 | 9 |
| Ecosystem | 3 | 3 |
| Evolution | 3 | 4 |
| Molecular Basis of Inheritance | 3 | 9 |
| Principles of Inheritance and Variation | 3 | 6 |
| Sexual Reproduction in Flowering Plants | 3 | 7 |
| Biotechnology and its Applications | 2 | 3 |
| Microbes in Human Welfare | 2 | 4 |
| Reproductive Health | 2 | 4 |
| Biodiversity and Conservation | 1 | 4 |
| Human Reproduction | 1 | 5 |
| Organisms and Populations | 1 | 3 |
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