The CBSE Class 12th Biology syllabus for the academic session 2025-26 has been updated. Students are encouraged to review the revised syllabus recently uploaded to the website.
[Index]
Overview
Before delving into the Class 12 Syllabus, let’s review the CBSE Class 12 Summary. Below, we’ve provided the comprehensive CBSE Class 12 Summary for your reference. Students are encouraged to explore the complete summary.
| Particulars | Description |
| Class | 12th |
| Subject | Biology |
| Board | CBSE |
| Category | Syllabus |
| Study Materials | Class 12 Study Materials |
| E-Book | Class 12 E-Book |
| YouTube Channel | Subscribe now |
Class 12 Biology Exam Pattern 2025-26
In this section, we have mentioned the Class 12 Biology Exam Pattern. Students can check the Class 12 Biology Exam Pattern for the academic year 2025-26.
Join Class 11th & 12th Group | Unit | Title | Marks |
| VI | Reproduction | 16 |
| VII | Genetics and Evolution | 20 |
| VIII | Biology and Human Welfare | 12 |
| IX | Biotechnology and its Applications | 12 |
| X | Ecology and Environment | 10 |
| Total | 70 |
Class 12 Biology Syllabus in PDF
In this section, we have mentioned the biology syllabus in PDF format with an exam pattern. Students can check the Biology Syllabus in PDF for the academic year 2025-26.
Class 12 Biology Syllabus Brief Review
Below, we have mentioned the Biology Syllabus Brief Review, like which topics/chapters to be covered in the Syllabus. Students are advised to check the brief review of the Biology syllabus.
Unit-VI Reproduction
- Chapter-2: Sexual Reproduction in Flowering Plants
- Chapter-3: Human Reproduction
- Chapter 4: Reproductive Health
Unit-VII Genetics and Evolution
- Chapter 5: Principles of Inheritance and Variation
- Chapter 6: Molecular Basis of Inheritance
- Chapter-7: Evolution
Unit-VIII Biology and Human Welfare
- Chapter 8: Human Health and Diseases Pathogens
- Chapter 10: Microbes in Human Welfare
Unit-IX Biotechnology and Its Applications
- Chapter-11: Biotechnology – Principles and processes
- Chapter 12: Biotechnology and its Application
Unit-X Ecology and Environment
- Chapter 13: Organisms and Populations
- Chapter-14: Ecosystem
- Chapter 15: Biodiversity and Its Conservation
Practical
Below, we have mentioned the Class 12 Biology Practical Syllabus, like which topics to be covered in the practical. Students are advised to check the brief review of Biology syllabus Practicals.
Time allowed: 3 Hours Max. Marks: 30
| Evaluation Scheme | Marks |
| One Major Experiment (Experiment No. 5) | 5 |
| One Minor Experiment (Experiment No. 2 & 3) | 4 |
| Slide Preparation (Experiment No. 1 & 4) | 5 |
| Spotting | 7 |
| Practical Record + Viva Voce (credit for yearly work) | 4 |
| Investigatory Project and its Record + Viva Voce | 5 |
| Total | 30 |
Note:- Credit to the student’s work over the academic session may be given*
Class 12 Biology Useful Resources
We have tried to bring CBSE Class 12 Physics NCERT Study Materials like Syllabus, Worksheet, Sample Paper, NCERT Solutions, Important Books, Holiday Homework, Previous Year Question Papers, etc. You can visit all these important topics by clicking the links given.
