BodhiScoreRajasthan Board Class 12 Biology Syllabus 2026-27
Exam scheme
Subject code 42. Students must pass theory and practical separately.
| Paper | Time | Paper marks | Sessional | Total |
|---|---|---|---|---|
| Theory | 3 hours 15 minutes | 56 | 14 | 70 |
| Practical | 4 hours | 30 | 0 | 30 |
Theory
Unit 6 — Reproduction
| Chapter | Topic | Marks |
|---|---|---|
| 1 | Sexual Reproduction in Flowering Plants | 5 |
| 2 | Human Reproduction | 4 |
| 3 | Reproductive Health | 2 |
Unit 7 — Genetics and Evolution
| Chapter | Topic | Marks |
|---|---|---|
| 4 | Principles of Inheritance and Variation | 5 |
| 5 | Molecular Basis of Inheritance | 6 |
| 6 | Evolution | 3 |
Unit 8 — Biology in Human Welfare
| Chapter | Topic | Marks |
|---|---|---|
| 7 | Human Health and Disease | 6 |
| 8 | Microbes in Human Welfare | 5 |
Unit 9 — Biotechnology
| Chapter | Topic | Marks |
|---|---|---|
| 9 | Biotechnology: Principles and Processes | 4 |
| 10 | Biotechnology and its Applications | 4 |
Unit 10 — Ecology
| Chapter | Topic | Marks |
|---|---|---|
| 11 | Organisms and Populations | 4 |
| 12 | Ecosystem | 5 |
| 13 | Biodiversity and Conservation | 3 |
Practical (30 marks)
Time 4 hours. Evaluation includes major and minor exercises in botany and zoology, plus record and viva as listed in the official PDF.
Prescribed book
Biology — NCERT Class 12, published under copyright.