Class 12 Biology Syllabus, Chapters and Solutions
Students preparing for the Class 12 Biology board exam 2026 can check Class 12 Biology Syllabus, Chapters and Solutions on this page. Read more on Class 12 Biology syllabus and Class 12 Biology chapters here.
Class 12 Biology Syllabus, Chapters and Solutions: We have provided Class 12 Biology syllabus on this page. Students preparing for the Class 12 board exams 2026 are advised to check the Biology Class 12 syllabus of their respective boards. Understanding the 12th Class Biology syllabus will help students to get an idea about chapters and weightage of chapters. The Class 12 Biology chapters are included in the Class 12 Biology syllabus 2025-26.
Class 12 Biology solutions are available online. Various coaching institutions are providing Solutions of Class 12 Biology on their websites. Students can download the Class 12 Biology solutions in PDF format for free. They can check the Class 12 Biology weightage 2025-26 on this page. In this article we discuss, Class 12 Biology Syllabus, Chapters and Solutions.
- Class 12 Biology syllabus
- Biology syllabus Class 12: Board-wise
- Class 12 Biology Chapters
- Class 12 Biology Weightage 2025-26
- FAQs on Class 12 Biology syllabus
Class 12 Biology syllabus
The boards including CBSE, ICSE, Maharashtra, Karnataka, Kerala, GSEB, Uttarakhand and more have released the Class 12 Biology Syllabus on the official website. Students preparing for the 2024 Class 12 board exams are advised to download and understand their Biology Class 12 syllabus 2025-26. The Class 12 Biology syllabus mentions the Class 12 Biology chapters included for the academic year 2025-26. For better preparation for the Class 12 Biology exam, the students must cover the Biology syllabus Class 12.
Biology syllabus Class 12: Board-wise
We have provided the Biology Class 12 syllabus of different boards in the following table. Students can click the given links to find the Class 12 Biology syllabus 2025-26 of the respective boards.
Class 12 Biology Chapters
Students can check the Class 12 Biology chapters in the table given below.
| Unit |
Chapters |
|---|---|
| Unit VI: Reproduction |
Chapter-1: Sexual Reproduction in Flowering Plants Chapter-2: Human Reproduction Chapter-3: Reproductive Health |
| Unit VII: Genetics and Evolution |
Chapter-4: Principles of Inheritance and Variation Chapter-5: Molecular Basis of Inheritance Chapter-6: Evolution |
| Unit VIII: Biology and Human Welfare |
Chapter-7: Human Health and Diseases Chapter-8: Microbes in Human Welfare |
| Unit IX: Biotechnology and its Applications |
Chapter-9: Biotechnology - Principles and Processes Chapter-10: Biotechnology and its Applications |
| Unit X: Ecology and Environment |
Chapter-11: Organisms and Populations Chapter-12: Ecosystem Chapter-13: Biodiversity and its Conservation |
Read:
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Class 12 Chemistry Syllabus, Chapters and Solutions
Class 12 Biology Weightage 2025-26
The following table gives the CBSE Class 12 Biology weightage 2025-26.
| Class 12 Biology Chapters | Marks |
|---|---|
| Reproduction |
16 |
| Genetics and Evolution |
20 |
| Biology and Human Welfare |
12 |
| Biotechnology and its Applications |
12 |
| Ecology and Environment |
10 |
| Total |
70 |
Also Read:
Class 12 Syllabus 2025-26 Physics, Chemistry, Maths, Biology and English
Class 12 Physics Chapter-wise Weightage 2025-26
FAQs on Class 12 Biology syllabus
Q: Where can I get Class 12 Biology syllabus?
A: You can check the class 12 Biology Syllabus on the official website of your respective board. We have provided the Class 12 Biology syllabus links for various boards on this page.
Q: Is it mandatory to check the Class 12 Biology syllabus 2025-26?
A: Students are advised to check the Class 12 Biology syllabus 2025-26, so that they will get an idea about what all topics to be learned for the exam.
Q: How many chapters are there in Class 12 Biology syllabus?
A: For CBSE, there are 13 chapters in the Class 12 Biology syllabus. The entire syllabus is divided into 5 units.