Class 12 Biology Pairing Scheme 2027
Previous-pattern reference, paper choices and a printable practice paper.
Last checked: 10 November 2026 · 85 theory marks · 180 minute practice allowance
Previous paper structure · 85 marks
Use the marks and choices below to practise the previous pattern. The generated question content is adapted to the books currently used on PunjabTest.
| Question / section | Offered | Attempt | Marks per answer / complete question | Marks counted |
|---|---|---|---|---|
| Q1 · Objective | 17 | 17 | 1 | 17 |
| Q2 · Short answers | 12 | 8 | 2 | 16 |
| Q3 · Short answers | 12 | 8 | 2 | 16 |
| Q4 · Short answers | 9 | 6 | 2 | 12 |
| Detailed questions | 5 | 3 | 8 | 24 |
Historical chapter pairing reference
Old book: Chapters 15–27
Published historical reference; chapter numbering has not been rewritten as current-book numbering.
| Historical chapter | MCQs |
|---|---|
| 15 | 1 |
| 16 | 2 |
| 17 | 2 |
| 18 | 1 |
| 19 | 1 |
| 20 | 2 |
| 21 | 1 |
| 22 | 1 |
| 23 | 2 |
| 24 | 1 |
| 25 | 1 |
| 26 | 1 |
| 27 | 1 |
| Historical short group | Old chapter references (offered questions if specified) |
|---|---|
| Q2 | 15 (3), 16 (3), 18 (2), 26 (2), 27 (2) |
| Q3 | 17 (3), 22 (3), 23 (3), 25 (3) |
| Q4 | 19 (2), 20 (3), 21 (2), 24 (2) |
| Historical long question | Old chapter references |
|---|---|
| Q5 | 15 + 21 |
| Q6 | 16 + 25 |
| Q7 | 17 + 24 |
| Q8 | 18 + 22 |
| Q9 | 19 + 23 |
Current textbook scope used by this practice generator
The historical book and the current book may contain different chapters. The groups here are the current-book practice allocation; they are not an official 2027 chapter quota.
Current book
| Practice short group | Current chapters |
|---|---|
| Q2 | 13. Thermoregulation and Osmoregulation / 14. Human Urinary System / 15. Human Nervous System / 16. Human Endocrine System |
| Q3 | 17. Human Reproductive Systems / 18. Inheritance / 19. Chromosomes and DNA / 20. Biotechnology |
| Q4 | 21. Immunity / 22. Biostatistics / 23. Pharmacology / 24. Evolution / 25. Ecology |
| Practice long group | Current chapter pair / pool |
|---|---|
| Group 1 | 13. Thermoregulation and Osmoregulation / 20. Biotechnology |
| Group 2 | 14. Human Urinary System / 21. Immunity |
| Group 3 | 15. Human Nervous System / 22. Biostatistics |
| Group 4 | 16. Human Endocrine System / 23. Pharmacology |
| Group 5 | 17. Human Reproductive Systems / 24. Evolution |
- Thermoregulation and Osmoregulation
- Human Urinary System
- Human Nervous System
- Human Endocrine System
- Human Reproductive Systems
- Inheritance
- Chromosomes and DNA
- Biotechnology
- Immunity
- Biostatistics
- Pharmacology
- Evolution
- Ecology
Generate a fresh practice paper
Previous paper structure · current content adaptation
Select Generate to prepare your paper.
Questions about this Biology reference
Is this the final official 2027 pairing scheme?
No. It is a previous-pattern reference with current-textbook practice adaptations. The page will be revised when the applicable official update is available.
Can I skip chapters using this old pairing?
Do not use the historical chapter numbers to omit current syllabus content. Prepare your full prescribed book and follow your teacher and board notifications.
Does the generator reproduce a past final paper?
No. It generates fresh practice questions using the stated marks and choices. It does not claim to recreate an actual board paper or predict upcoming questions.