NCERT Books for Class 12 Biology
Team Careers360, 18 Jun 2019

NCERT Books for Class 12 Biology: National Council of Educational Research and Training (NCERT) publishes the NCERT class 12 Biology books that are planned under the National Curriculum Framework (NCF). Most of the CBSE and State Boards follow these books and syllabus. NCERT textbook for class 12th biology include all topics and chapters that are covered in CBSE class 12 Syllabus for Biology in the simplest manner. Biology is a theoretical subject and seems easier than physics and chemistry. But this subject needs to be prepared carefully as well, as it is very scoring. Hence, students are advised to read from NCERT Books for Class 12 Biology to study the subject and clear all the basics first. Moreover, questions in CBSE Class 12th board exams, KVPY scholarship exam, NEET entrance exam, etc are generally asked from the NCERT Science books class 12. Students can also refer to NCERT exemplar class 12 biology book pdf for better preparation. Read the article to know how to download NCERT books for Class 12 Biology online for free, syllabus and marking scheme.

Download Free NCERT Books for Class 12 Biology pdf

Check the given steps to download NCERT Biology books for class 12th online :

  • Click on the respective chapter link or visit the official website

  • Select the respective class and subject.

  • A pdf file will open on your screen.

  • Now, click on the arrow given above to download the pdf file of NCERT Class 12 Biology book free of cost.

NCERT 12th Class Biology Books Online: Steps to Download for free

NCERT has started the provision to buy the books online for the comfort of students. To buy the same, follow these steps :

  • Visit the official website of NCERT, to buy the Class 12 Biology Books online.

  • Register online by providing the basic info. before placing the order.

  • Now, Click on the link "order textbooks online" and add the NCERT Books for Class 12 Biology in the cart.

  • Click on the option “proceed to payment” for paying the amount using a credit card, debit card or net banking through online mode.

NCERT Book for Class 12 Biology

This book of NCERT Class 12 biology is prescribed in most of the CBSE board schools and hence it gives relevant information about the respective subject. Chapter-wise links of NCERT Biology book are tabulated below:

Human Ecology And Family Sciences Part - I

Below mentioned is another NCERT Books for Class 12 Biology which is not prescribed by CBSE but some of the schools refer this book for Class 12th. Human Ecology and Family Sciences (HEFS) is framed to broaden student’s knowledge regarding self-development in relation to family and society. Chapter-wise links of this book are discussed below:

Biology Class 12 Syllabus and Marking Scheme:

We have discussed in detail about the Class 12th Biology exam structure, syllabus and marking scheme which will help students understand the pattern of the exam and help them prepare well.








Genetics and Evolution



Biology and Human Welfare










Students are advised to be aware of the NCERT syllabus and marking scheme of all the other Class 12th subjects to prepare well and in a definite pattern. Also, read:

Unit VI - Reproduction:

The first unit of NCERT Books for Class 12 Biology is Reproduction. This unit is further differentiated into several chapters namely - Reproduction in human beings, Reproduction in flowering plants, Human Reproduction and Reproductive health. This unit acts as a huge importance to score well in the class 12th board exams as it holds 14 marks out of 70. Students are advised to prepare this unit using a lot of diagrammatic representation. This will help them to understand the details clearly.

Unit VII - Genetics And Evolution

The Genetics and Evolution unit contains several chapters namely - Principles of Inheritance and Variation, Molecular Basis of Inheritance, and Evolution. Students should prepare well by using diagrams along with a theoretical explanation. This unit involves some concepts which will be clear if studied carefully. Students are also suggested to make short notes of various topics while preparation of the exams. This unit is important as it carries 18 marks out of 70 in class 12th biology board exams.

Unit VIII - Biology in Human Welfare

NCERT Books for Class 12 Biology take into account this unit and further distribute the same into chapters such as - Human Health and Diseases, Strategies for Enhancement in Food Production and Microbes in Human Welfare. These chapters include a lot of theoretical information. Students are advised to highlight important details to remember every important point. This unit holds 14 marks and can be prepared in less time. Thus, students are suggested to prepare this unit well to score high.

Unit IX - Biotechnology

This unit involves theory and simple details about Biotechnology and its application. Biotechnology is further divided into two chapters such as - Biotechnology: Principles and Processes and Biotechnology and its Applications. It carries 10 marks out of 70. Students are advised referring to NCERT Biology books for class 12 to clear their concepts. It is advised to make personal notes for better preparation.

Unit X - Ecology

Ecology is the last unit, which is included in the NCERT Books for Class 12 Biology. It involves several chapters like Organism and Population, Ecosystem, Biodiversity and Conservation and Environmental Issues. This unit holds 14 marks out of 70 and should be prepared using flowcharts. Using flowcharts will help the students to remember every detail which will add to their high score.

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