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In Class 12th, Biology is more than a subject. It is considered to be the foundation for careers in medicine, biotechnology, pharmacy, life sciences, and so on. For the syllabus of this subject, you need to have a deep understanding of the concepts along with proper use of the terminology. This is the reason why you must utilize the Class 12 Biology NCERT solutions on the educational platform of SelfStudys. We provide them for free in chapter-wise PDFs in order to make your learning easier as well as more effective.

The questions in the board exam are framed from the textbooks directly. They evaluate your clarity of concepts, diagrams, definitions, etc. You might struggle to give proper answers or miss out on key terms if you don’t have the accurate solutions. But with the help of the Class 12 Biology NCERT solutions 2025-26, you will be able to bridge this gap as they will offer you clear, step-by-step answers that follow the latest marking scheme.

What Makes NCERT Biology Different?

The NCERT Biology stands apart from the other subjects of science. This is because rather than problem-solving, it is concept-driven, language-sensitive, as well as aligns heavily with real-life biological processes. Unlike subjects like Physics or Chemistry, where formulas and calculations are more important, for this subject, you need a deep understanding of mechanisms, sequences, cause-and-effect relationships, and so on.

This subject is also highly dependent on accuracy and conceptual clarity. By using the Biology Class 12 NCERT solutions PDF, you will be able to interpret the content of the textbook in a correct manner and frame your answers as expected by the Central Board of Secondary Education. In the table given below, you can learn the features of this resource on our platform.

FEATURE	DETAILS
Name of the Resource	Biology NCERT solutions class 12 PDF download
Academic Year	2025-26
Type of Resource	PDF (Portable Document Format)
Content Type	NCERT Class 12 Biology solutions chapterwise
Number of Chapters	Total: 16 Chapter 1: Reproduction in Organisms Chapter 2: Sexual Reproduction in Flowering Plants Chapter 3: Human Reproduction Chapter 4: Reproductive Health Chapter 5: Principle of Inheritance and Variation Chapter 6: Molecular Basis of Inheritance Chapter 7: Evolution Chapter 8: Human Health and Diseases Chapter 9: Strategies for Enhancement in Food Production Chapter 10: Microbes in Human Welfare Chapter 11: Biotechnology Principles and Processes Chapter 12: Biotechnology and its Applications Chapter 13: Organisms and Populations Chapter 14: Ecosystem Chapter 15: Biodiversity and Conservation Chapter 16: Environmental Issues
Study Mode for the NCERT Solutions For Class 12 Biology	Online as well as offline mode
Latest Biology NCERT Solutions For Class 12 Medium	English

Who Benefits Most From The Biology Class 12 NCERT Solutions PDF?

With a vast syllabus of this subject that covers genetics, biotechnology, human physiology, ecology, and evolution, you might face difficulty in finding what is truly important from the perspective of the examination. This is where the Class 12 Biology NCERT solutions become an academic resource that is highly targeted. In this section, we have described the groups that can gain maximum benefit from using these solutions.

Who benefits most from the NCERT Biology Solutions PDF

CBSE Board Exam-Oriented Students

If you are preparing for the board examination specifically, then you can have the most benefit from the Class 12 Biology NCERT solutions 2025-26. It is because several questions are framed from the NCERT textbook directly in the exam. With the help of this material, you will be able to learn how the answers should be structured as per the marking scheme. This is particularly helpful for the long-answer or diagram-based questions. The solutions will also clarify how you need to write keywords, definitions, biological terms, etc., and avoid losing marks. A few other resources that we provide for CBSE students are:

NEET Aspirants

In the National Eligibility cum Entrance Test, this subject has the highest weightage. And a significant portion of the questions is based on the concepts of the NCERT. By using the Biology Class 12 NCERT solutions PDF, you can solidify your understanding of the concepts, revise the information that is based on facts, as well as avoid common mistakes that are related to definitions, examples, biological processes, etc. These solutions can also be used as a reliable base before you move on to advanced reference books. Some other resources that you can use on our platform for this exam are:

CUET Biology Exam Candidates

If you are preparing for the Common University Entrance Test and have chosen Biology as a domain-specific subject, then you can surely benefit from the Biology NCERT solutions class 12 PDF download. The focus of the CUET is mainly on conceptual clarity as well as NCERT-aligned questions. With the help of these chapter-wise PDFs for the solutions, you will be able to revise in an efficient manner, understand questions on assertion-reason, improve accuracy in MCQ-based assessments, and so on. This makes them highly useful for the CUET preparation. We also have many other resources for this examination, such as:

Students Struggling With Conceptual And Memory-Based Topics

This subject includes a lot of memorization of scientific names, cycles, biological pathways, and so on. If you are the one who finds it difficult to remember and connect concepts such as genetics, evolution, and human physiology, then you should use the NCERT solutions for Class 12 Biology. They will divide the complex topics into smaller segments, which will further make your learning more effective and less confusing.

Repeaters And Improvement Exam Candidates

Students who are appearing for the compartment, improvement, or re-examinations can benefit themselves by using the NCERT Class 12 Biology solutions chapterwise. They will provide such candidates with a focused, as well as syllabus-oriented approach. Students can find the weak chapters quickly, practice standard questions, and revise in an effective manner without any unnecessary distractions. These students can also utilize other CBSE resources from our platform, like:

How To Get The Biology NCERT Solutions Class 12 PDF Download?

You can visit our website on your preferred device and follow the steps given below to download the latest Biology NCERT solutions for Class 12.

First, to reach the website, you need to type www.selfstudys.com into any web browser.

Class 12 Biology NCERT solutions

You should click on the ‘Navigation’ bar on the main page and select the ‘NCERT’ section.

Class 12 Biology NCERT solutions 2025-26

This section will showcase all the related study materials, and you can tap on the ‘NCERT Solutions’ option.

Biology Class 12 NCERT solutions PDF

Then, you can check out all the classes and click on the ‘12th’ icon to proceed further.

Biology NCERT solutions class 12 PDF download

All the subjects for which we provide these solutions will now open up, and you can click on the one that will load the Class 12 Biology NCERT solutions.

NCERT solutions for Class 12 Biology

At last, the list of chapters for the Class 12 Biology NCERT solutions 2025-26 will be available.

NCERT Class 12 Biology solutions chapterwise

You can start using the Biology Class 12 NCERT solutions PDF for every chapter one by one and enhance your learning.

Key Subtopics And Core Concepts To Master From The NCERT Solutions For Class 12 Biology

Below is a table in which we have mentioned all the subtopics and important concepts of each chapter that you must master with the help of the Biology NCERT solutions class 12 PDF download. Through this process, you will be able to score higher marks in the board as well as competitive examinations.

CHAPTER NAME	MOST IMPORTANT SUBTOPICS and CONCEPTS
Chapter 1 Reproduction in Organisms	Types of reproduction, life span, and senescence, asexual vs sexual reproduction, reproductive phases, significance of reproduction
Chapter 2 Sexual Reproduction in Flowering Plants	Structure of flower, microsporogenesis and megasporogenesis, pollination types, fertilisation process, double fertilisation, seed and fruit development
Chapter 3 Human Reproduction	Male and female reproductive systems, gametogenesis, menstrual cycle, fertilisation, implantation, pregnancy stages, parturition
Chapter 4 Reproductive Health	Birth control methods, MTP, STDs, infertility causes and treatments, population explosion, reproductive health measures
Chapter 5 Principles of Inheritance and Variation	Mendel’s laws, monohybrid and dihybrid crosses, incomplete dominance, codominance, pedigree analysis, chromosomal disorders
Chapter 6 Molecular Basis of Inheritance	DNA structure, replication, transcription, genetic code, translation, gene regulation (lac operon), DNA fingerprinting
Chapter 7 Evolution	Origin of life theories, evidence of evolution, natural selection, the Hardy–Weinberg principle, adaptive radiation, human evolution
Chapter 8 Human Health and Disease	Pathogens, immunity (innate and acquired), vaccines, allergies, cancer, drug abuse, common diseases
Chapter 9 Strategies for Enhancement in Food Production	Plant breeding methods, hybridisation, animal breeding, tissue culture, biofortification, single-cell protein
Chapter 10 Microbes in Human Welfare	Industrial products, antibiotics, sewage treatment, biogas production, biofertilisers, biocontrol agents
Chapter 11 Biotechnology: Principles and Processes	Genetic engineering tools, restriction enzymes, cloning vectors, PCR, bioreactors, gel electrophoresis
Chapter 12 Biotechnology and Its Applications	GM crops, Bt cotton, insulin production, gene therapy, molecular diagnostics, and ethical issues
Chapter 13 Organisms and Populations	Population attributes, growth models, ecological interactions, adaptations, and abiotic factors
Chapter 14 Ecosystem	Energy flow, food chains and webs, ecological pyramids, nutrient cycles (carbon and phosphorus), ecosystem services
Chapter 15 Biodiversity and Conservation	Levels of biodiversity, biodiversity loss causes, conservation strategies, hotspots, and endangered species
Chapter 16 Environmental Issues	Air and water pollution, global warming, ozone depletion, solid waste management, and renewable resources

Biology Topics That Appear Frequently In CBSE And NEET Exams

In both CBSE and NEET exams, this subject plays a very important role. That’s why it is necessary that you know the topics that are covered again and again in these exams. We have mentioned all these topics along with their approximate weightage in a tabular format below. Also, with the usage of the NCERT solutions for Class 12 Biology, you can focus on these topics that will help you increase your scores as well as strengthen your foundations of the concepts.

Unit/Chapter	Frequently Asked Topics and Concepts	CBSE Exam Weightage (Approx.)	NEET Exam Weightage (Approx.)
Reproduction in Organisms	Human reproductive system, gametogenesis, menstrual cycle, double fertilization, contraceptive methods	12 to 14%	10 to 12%
Sexual Reproduction in Flowering Plants	Microsporogenesis and megasporogenesis, Pollination types, Double fertilization, Endosperm development, Fruit and seed development	5 to 7%	8 to 10%
Human Reproduction	Menstrual cycle (hormonal phases), Gametogenesis, Fertilization and implantation, Placenta and embryonic membranes, Parturition and lactation	6 to 8%	10 to 12%
Reproductive Health	Contraceptive methods, STDs, ART (IVF, ICSI, ZIFT, GIFT), Population control measures	3 to 4%	5 to 6%
Principles of Inheritance and Variation	Mendelian laws, Monohybrid and dihybrid, Incomplete dominance, Codominance (ABO), Multiple alleles, Pedigree analysis, Linkage and recombination	10 to 12%	10 to 12%
Molecular Basis of Inheritance	DNA structure, Replication (semi‑conservative), Transcription, Translation, Genetic code, Operon (lac), Mutations, DNA fingerprinting	12 to 14%	10 to 12%
Evolution	Hardy–Weinberg equilibrium, Natural selection, Evidence of evolution, Adaptive radiation, Speciation	4 to 5%	6 to 7%
Human Health and Disease	Immunity (innate/acquired), Antibodies, Vaccination, AIDS, Cancer, Allergies, Autoimmunity	5 to 6%	6 to 7%
Strategies for Enhancement in Food Production	Hybridization, Plant and animal breeding steps, Biofortification, Tissue culture basics	3 to 4%	5 to 6%
Microbes in Human Welfare	Sewage treatment, Biogas production, Antibiotics, Biofertilizers, Microbial enzymes (e.g., amylase)	4 to 5%	5 to 6%
Biotechnology: Principles and Processes	Restriction enzymes, Cloning vectors, PCR, Gel electrophoresis, Gene cloning steps	7 to 8%	8 to 9%
Biotechnology and Its Applications	Recombinant insulin, Bt crops, Gene therapy basics, GM organisms, DNA vaccines, Ethical issues	6 to 7%	7 to 8%
Organisms and Populations	Population growth curves, Species interactions (+ examples), Ecological niche	4 to 5%	5 to 6%
Ecosystem	Energy flow and laws, Ecological pyramids, Nutrient cycles (N, C)	3 to 4%	4 to 5%
Biodiversity and Conservation	Biodiversity hotspots, Endemism, IUCN categories, Conservation strategies	3 to 4%	4 to 5%
Environmental Issues	Air, water, soil pollution, Global warming, Ozone depletion, and solid waste	3 to 4%	4 to 5%

How To Use The NCERT Class 12 Biology Solutions Chapterwise For Maximum Results?

In order to score well in this subject, you must understand the framing of biological concepts into questions. So, if you just download the NCERT Class 12 Biology solutions chapterwise, then it is not enough. You can only get real benefits when you use them the right way. Our subject-matter experts have described some strategies on how you can make the most of these solutions and turn them into a powerful tool for revision, practice, and exam success.

👍 Before you jump into the latest Biology NCERT solutions for Class 12, you should read the chapter very carefully. In this way, you can build a natural flow of concepts like cycles, mechanisms, processes, and so on. Then, after reading the chapter, you need to refer to the solutions and check your understanding matches the explanations that are expected. Through this approach, you will be able to strengthen your conceptual clarity instead of rote learning.

👍 The answers in Biology are evaluated on the correct use of scientific terms heavily. It can be like zygote, homologous, chromosomes, gene pool, trophic level, etc. So, while you are using the Class 12 Biology NCERT solutions, you need to underline or note down these keywords and use them properly when you are revising and writing practice answers.

👍 Many questions in this subject require 3 to 5 marks. With the help of the Class 12 Biology NCERT solutions 2025-26, you can understand how to break answers into introduction or definition, step-wise explanation or process, examples or diagrams, conclusion or significance, and so on. By following this structure, you will be able to make your answers more organized.

👍 Once you have completed a chapter, you should write the answers to the questions by yourself first. Then, you need to compare them with the Biology Class 12 NCERT solutions PDF. During the process, you should find the missing points, incorrect terms, or weak explanations. This self-analysis is considered to be one of the most effective ways to improve your answer-writing skills in Biology.

👍 When you are in the phase of last-minute revision, reading full chapters can be time-consuming. The Biology NCERT solutions class 12 PDF download will serve as a compact revision material because it highlights all the important questions and their answers in one place. By using them, you will be able to reinforce the concepts quickly without any confusion.

Conclusion

This is a subject where clear concepts, correct scientific terminology, and well-structured answers can make all the difference in your exam performance. As Biology has a vast syllabus, you might need reliable guidance to understand what to study as well as how to write answers correctly. And there is no better resource than NCERT solutions for Class 12 Biology for this purpose. With the help of these solutions, you will develop a strong foundation in biology while aligning your preparation with the expectations of the board exam.

FAQs

Need answers? Find them here...

Absolutely! Our experts make sure to include detailed explanations for long-answer questions in the Class 12 Biology NCERT solutions. These answers are written in a proper format, with which you can learn how to attempt 5-mark questions in the examination.

Yes, with the help of the NCERT Class 12 Biology solutions chapterwise, you can enhance your skills in writing the answers. This will happen because you can see how to write precise, well-organized, as well as exam-oriented answers. By studying them, you will also be able to learn how to include relevant points, proper headings, and biological terms.

The structure of the Biology NCERT solutions class 12 PDF download at SelfStudys is in a chapter-wise format. You will see that every question is followed by a detailed answer that explains the concept in simple language. Our solutions also include diagrams, definitions, examples, and key points so that you can grasp the topic thoroughly.

The Class 12 Biology NCERT solutions 2025-26 can be used by CBSE students, NEET aspirants, as well as teachers who want structured and accurate answers. Moreover, if you are the one who struggles with understanding the biological processes, diagrams, and terminologies, then you will surely benefit from using these solutions on a regular basis.

Yes, at SelfStudys, you get the latest Biology NCERT solutions for Class 12 as per the textbook and updated CBSE syllabus. We make sure that you study only the topics that are relevant, as well as avoid any outdated information.