CBSE Class 12 Biology Notes for All Chapters

CBSE Class 12 Biology Notes Chapter-Wise

CBSE Class 12 Biology Notes are provided to help students prepare well for the exams. Through CBSE Notes for Class 12 Biology, students can make the most out of their study time. Biology notes for Class 12 include well-researched information about all the chapter topics, and students will be able to understand each topic clearly. With these CBSE Notes for Class 12 Biology, students will further be able to revise all the important topics quickly and be stress-free, especially before the board examinations. The CBSE Class 12 Biology Notes have been prepared by subject experts and cover each chapter in detail. Additionally, these CBSE Class 12 Notes involve both the questions and answers of Biology, which are most expected to appear in the Class 12 board examination. Students will also find neat and labelled diagrams for all the questions that are mainly based on the NCERT textbook. Students can refer to these CBSE Class 12 Biology Notes both for their home assignments and exam preparation.

CBSE Class 12 Biology Notes for All Chapters

Biology is the most interesting and scoring subject, which is further full of amazing facts and exclusive discoveries. Biology is also one of the important subjects in the science stream, and obtaining good marks in this subject could help students land placement in good medical institutions and others. As it is important to score a good percentage in the exams, it is not enough to study from the Class 12 textbook. Students need some effective study materials and study tools, such as CBSE Notes for Class 12 Biology. So, to help them, we have compiled the CBSE Class 12 Biology Notes for all the chapters. Students can also access the CBSE Notes for Classes 6 to 12 compiled in one place.

Check the links given below to access chapter-wise Class 12 Biology Notes of the CBSE board.


Biology Notes for CBSE Class 12

Chapter 1 – Sexual Reproduction in Flowering Plants
Chapter 2 – Human Reproduction
Chapter 3 – Reproductive Health
Chapter 4 – Principles of Inheritance and Variation
Chapter 5 – Molecular Basis of Inheritance
Chapter 6 – Evolution
Chapter 7 – Human Health and Disease
Chapter 8 – Microbes in Human Welfare
Chapter 9 – Biotechnology: Principles and Processes
Chapter 10 – Biotechnology and Its Applications
Chapter 11 – Organisms and Populations
Chapter 12 – Ecosystem
Chapter 13 – Biodiversity and Conservation

The following chapters have been removed from the NCERT Class 12 Biology textbook 2023-24.

Topics Removed from the NCERT Class 12 Biology Textbook 2023-24

Reproduction in Organisms
Strategies for Enhancement in Food Production
Environmental Issues

For more CBSE Class 12 Biology Notes, check the links given below:

CBSE Class 12 Biology Revision Notes Important Questions for Class 12 Biology

We hope these Biology Notes must have helped CBSE Class 12 students in their exam preparation. Stay tuned with BYJU’S for more CBSE and NCERT notes along with its important questions and solutions.

Frequently Asked Questions on CBSE Class 12 Biology Notes


What are single-cell proteins?

The proteins which are derived from the cells of microorganisms such as yeast, fungi, algae and bacteria are known as single-cell proteins.


What is meant by F1 and F2 generation?

F1: It is the first filial generation obtained by crossing two different parents. F2: It is the second filial generation obtained by self-crossing the F1 generation.


What is meant by genetic drift?

Genetic drift refers to random fluctuations in the frequencies of alleles from generation to generation due to chance events.


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