NCERT Books for Class 12 Biology – Download PDF (Latest Edition)

Irshad AnwarUpdated on 08 Aug 2025, 12:18 PM IST

The NCERT Books for Class 12 Biology help students to explore amazing facts in a simple manner. This book includes clear diagrams, real-life examples that build a strong understanding. Chapters related to genetics, ecology, human physiology, and many more are included. Questions in board exams and competitive exams, such as NEET, directly come from this textbook. This makes it useful to score well on the exams. Students can trust these NCERT books to make the subject easier to understand.

This Story also Contains

NCERT Biology Book Class 12 Chapters List
How to Download the NCERT Textbook Class 12 Biology 2025-26?
Biology Class 12 Syllabus and Marking Scheme
Class 12 NCERT Biology Book Chapters and Study Tips
Best NCERT Biology Class 12 Reference Books

NCERT Books for Class 12 Biology – Download PDF (Latest Edition)

NCERT Books for Class 12 Biology 2025-26

These books follow the NCERT Class 12 syllabus, with chapters arranged in the right order. This allows students not to miss any important topic or concept. Practice exercises with different forms of questions help students check their knowledge. These features support strong preparation and a better understanding of concepts. Students can download the free NCERT book for Class 12 Biology PDF and start learning at their own pace.

NCERT Biology Book Class 12 Chapters List

The name of the book is Biology in English and Jeev Vigyan in Hindi. The Class 12 NCERT Biology book is a trusted resource for board and competitive exams. These books are available in both print and digital forms. Chapter-wise links to the book are given below:

Chapter no.	English Medium	Hindi Medium
Chapter 1	Sexual Reproduction in Flowering Plants	पुष्पी पादपों में लैंगिक प्रजनन
Chapter 2	Human Reproduction	मानव जनन
Chapter 3	Reproductive Health	जन स्वास्थ्य
Chapter 4	Principles of Inheritance And Variation	वंशागति तथा विविधता के सिद्धांत
Chapter 5	Molecular Basis of Inheritance	वंशागति के आणविक आधार
Chapter 6	Evolution	विकास
Chapter 7	Human Health and Disease	मानव स्वास्थ्य तथा रोग
Chapter 8	Microbes in Human Welfare	मानव कल्याण में सूक्ष्मजीव
Chapter 9	Biotechnology Principles and Processes	जैव प्रौद्योगिकी- सिद्धांत व प्रक्रम
Chapter 10	Biotechnology and its Applications	जैव प्रौद्योगिकी एवं उसके उपयोग
Chapter 11	Organisms And Population	जीव और समष्टियाँ
Chapter 12	Ecosystem	पारितंत्र
Chapter 13	Biodiversity and Conservation	जैव-विविधता एवं संरक्षण

How to Download the NCERT Textbook Class 12 Biology 2025-26?

Students can also download the book to prepare comfortably for the exam. Check the given steps to download the books online for free:

Visit the official website of NCERT, ncert.nic.in
In the section of links, click on ‘Textbook’, then click on 'Ebooks'.
Now, click on ‘PDF (I-XII)’
Select the respective class, subject, and book.
Click on ‘Go.’
Class 12 Biology Book 2025-26 will be displayed on the screen.
Students can also download the NCERT Biology Book Class 12 in the PDF format from the link given below.

Download: NCERT Book for Class 12 Biology PDF

Biology Class 12 Syllabus and Marking Scheme

Biology is an interesting subject that helps us understand the wonders of life and the environment. Understanding the marking scheme helps them to stay organised and prepare well for the exams. By this, students can give priority to the high-weightage chapters included in the NCERT textbook Class 12 Biology.

Unit	Titles	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

Also read -

NEET Highest Scoring Chapters & Topics

Most Scoring concepts For NEET (Based On Previous Year Analysis)

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Class 12 NCERT Biology Book Chapters and Study Tips

The biology book consists of 13 chapters, which are divided into five major units. Each units deal with various topics of biological sciences. Below is a brief description of these units and their chapters. It also includes how students can study these chapters from the Class 12 Biology Book 2025-26 to score well in the exam.

Unit VI: Reproduction

Use diagrams to learn about gametogenesis, fertilisation, and embryonic development. Diagrams can increase understanding and recall of these topics during exams.

Unit VII: Genetics and Evolution

Mix theoretical study with diagrams for concepts such as DNA replication, transcription, and evolutionary relationships. Making short notes from the NCERT Books for Class 12 reduces the time while revising.

Unit VIII: Biology and Human Welfare

Mark important points from the Class 12 NCERT Biology book regarding diseases and the function of microbes. The unit is not too long, making it possible to prepare within a short time.

Unit IX: Biotechnology and Its Applications

Focus on understanding the procedures of biotechnology by using the NCERT book for Class 12 Biology PDF. Making notes, which may be useful in understanding applications and other aspects.

Unit X: Ecology and Environment

Use flowcharts to understand ecological relationships, energy flow, and environmental problems. This helps in understanding and remembering relationships in the exam.

Also, check -

Best NCERT Biology Class 12 Reference Books

Here is a list of the books for Class 12 Biology that help in preparing for the board exam and competitive exams. Studying from these books, along with the weightage of every unit, can help in doing the preparation effectively.

NCERT Class 12 Biology Textbook (Latest Edition)
Trueman’s Elementary Biology for Class 12
Pradeep’s A Textbook of Biology
S. Chand’s Biology for Class XII
Dinesh New Millennium Biology Class 12
MTG Objective NCERT at Your Fingertips Biology

Also Check,

Frequently Asked Questions (FAQs)

Q: What is included in the NCERT book for class 12 Biology?

The NCERT Books for Class 12 Biology include 13 chapters, which are divided into 5 units. The names of units are given below:

Reproduction
Genetics and Evolution
Biology and Human Welfare
Biotechnology and Its Applications
Ecology and Environment

Q: Which is the most difficult chapter in Class 12 Biology?

Many students find the "Molecular Basis of Inheritance" chapter a bit challenging from the Class 12 Biology Book. This chapter includes complex concepts like DNA replication, genetic code, and gene expression.

Q: Which is the easiest chapter in class 12 biology?

The easiest chapter in NCERT Books for Class 12 Biology is usually "Reproduction in Organisms." Students can understand this chapter easily with the help of simple and clear explanations.

Q: Is NCERT sufficient for class 12 Biology?

Yes, NCERT Books for Class 12 Biology are sufficient for board exams and NEET preparation. They cover all important topics in simple language. Most exam questions come directly from NCERT. So, preparing from these books will help a lot.

Q: Is class 12 Biology difficult?

Yes, Class 12 Biology can be a little bit difficult for some students. But NCERT Books for Class 12 Biology explain the concepts in a simple and clear way. Doing regular practice and consistent revision makes the difficult concepts easy.

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A block of mass 0.50 kg is moving with a speed of 2.00 ms^-1 on a smooth surface. It strikes another mass of 1.00 kg and then they move together as a single body. The energy loss during the collision is

Option 1) $0.34\; J$	Option 2) $0.16\; J$
Option 3) $1.00\; J$	Option 4) $0.67\; J$

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Option 1)

2.45×10⁻³ kg

Option 2)

6.45×10⁻³ kg

Option 3)

9.89×10⁻³ kg

Option 4)

12.89×10⁻³ kg

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Option 1) $2,000 \; J - 5,000\; J$	Option 2) $200 \, \, J - 500 \, \, J$
Option 3) $2\times 10^{5}J-3\times 10^{5}J$	Option 4) $20,000 \, \, J - 50,000 \, \, J$

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Option 1) $K/2\,$	Option 2) $\; K\;$
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In the reaction,

$2Al_{(s)}+6HCL_{(aq)}\rightarrow 2Al^{3+}\, _{(aq)}+6Cl^{-}\, _{(aq)}+3H_{2(g)}$

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Option 1) 0.02	Option 2) 3.125 × 10^-2
Option 3) 1.25 × 10^-2	Option 4) 2.5 × 10^-2

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Option 1) decrease twice	Option 2) increase two fold
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Option 1) Molality	Option 2) Weight fraction of solute
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Option 1) twice that in 60 g carbon	Option 2) 6.023 × 10²²
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