NCERT Exemplar Class 12 Biology PDF download - Free PDF Download

What Is NCERT Exemplar and Why Does Class 12 Biology Need It?

NCERT Exemplar is an official problem book published by NCERT alongside the standard textbook. The NCERT Exemplar Class 12 Biology PDF has four types of questions in every chapter:

• Multiple-choice questions, many of them statement-based ("select the correct options from i, ii, iii, iv"), which is very close to the NEET style
• Very short answer questions that test exact terms and facts
• Short answer questions that need a reasoned explanation
• Long answer questions that test a full process, often with a diagram

💡 Expert Tip by the eSaral Academic Team: "NEET Biology is famously NCERT-based, but 'NCERT-based' does not mean only the textbook exercises. Many NEET questions come from in-text lines, diagrams and the kind of application thinking that NCERT Exemplar trains. Solve the Exemplar after every chapter, before moving to the next."

NCERT Exemplar Class 12 Biology PDF – Chapter-wise Download (All 13 Chapters)

The NCERT Exemplar Class 12 Biology PDF links below follow the 13 chapters of the 2026-27 NCERT Class 12 Biology textbook. Click any chapter to open its page and download the PDF.

Every NCERT Exemplar Class 12 Biology PDF here is free to download. No registration required.

Chapter-wise Overview: What Each Class 12 Biology Exemplar Chapter Covers

Here is what each chapter of the NCERT Exemplar Class 12 Biology PDF covers and what its questions focus on.

Reproduction (Chapters 1–3)

Chapter 1 — Sexual Reproduction in Flowering Plants: Flower structure, microsporogenesis, megasporogenesis, pollination (agents and types), double fertilisation, and post-fertilisation structures such as endosperm, embryo, seed and fruit. One of the most diagram-heavy chapters; the Exemplar tests labelling and process sequencing.

Chapter 2 — Human Reproduction: Male and female reproductive systems, gametogenesis (spermatogenesis and oogenesis), the menstrual cycle, fertilisation, implantation, embryonic development and parturition. Exemplar questions test the hormonal control of the menstrual cycle and the stages of development.

Chapter 3 — Reproductive Health: Population and birth control, contraceptive methods (natural, barrier, IUDs, oral pills, surgical), MTP, sexually transmitted infections, infertility and assisted reproductive technologies (IVF, ZIFT, GIFT, ICSI, AI). The Exemplar tests how each method works.

Genetics and Evolution (Chapters 4–6)

Chapter 4 — Principles of Inheritance and Variation: Mendel's laws, monohybrid and dihybrid crosses, incomplete dominance, codominance, linkage, sex determination, sex-linked inheritance, pedigree analysis and chromosomal disorders. A high-weightage NEET chapter where Exemplar practice pays off.

Chapter 5 — Molecular Basis of Inheritance: DNA structure, DNA replication, transcription, the genetic code, translation, regulation of gene expression (lac operon), the Human Genome Project and DNA fingerprinting. The Exemplar tests process details in depth.

Chapter 6 — Evolution: Origin of life, evidence for evolution, adaptive radiation, Darwinism, the mechanism of evolution, the Hardy-Weinberg principle, types of natural selection and human evolution. Exemplar questions apply these ideas to new examples.

💡 Expert Tip by the eSaral Academic Team: "Principles of Inheritance and Molecular Basis of Inheritance together form the biggest Genetics block in Class 12 NEET Biology. Spend extra Exemplar time on these two chapters; every hour here returns more marks than most other chapters."

Biology and Human Welfare (Chapters 7–8)

Chapter 7 — Human Health and Disease: Common human diseases, immunity (innate and acquired), vaccination, allergies, autoimmunity, AIDS, cancer, and drugs and alcohol abuse. The Exemplar tests the immune response and disease-specific facts.

Chapter 8 — Microbes in Human Welfare: Microbes in household products (curd, bread, toddy), industrial products (antibiotics, organic acids, enzymes), sewage treatment, biogas, biocontrol agents and biofertilisers. Exemplar questions often test which microbe gives which product.

Biotechnology (Chapters 9–10)

Chapter 9 — Biotechnology: Principles and Processes: Recombinant DNA technology, restriction enzymes, cloning vectors (plasmids, bacteriophages), competent hosts, PCR, gel electrophoresis and bioreactors. The Exemplar tests the step-by-step process of rDNA technology.

Chapter 10 — Biotechnology and its Applications: Bt cotton, RNA interference, genetically engineered insulin, gene therapy, molecular diagnosis, transgenic animals, biosafety and biopiracy. The Exemplar tests specific applications and ethical issues.

Ecology (Chapters 11–13)

Chapter 11 — Organisms and Populations: Population attributes, population growth models (exponential and logistic) and population interactions (mutualism, competition, predation, parasitism, commensalism, amensalism). The Exemplar tests graph reading and identifying the interaction type.

Chapter 12 — Ecosystem: Ecosystem structure, productivity, decomposition, energy flow (10% law) and ecological pyramids. The Exemplar tests energy calculations and pyramid shapes.

Chapter 13 — Biodiversity and Conservation: Levels of biodiversity, patterns of species richness, the importance of species diversity, causes of biodiversity loss ("The Evil Quartet") and conservation (in situ: biosphere reserves, national parks, sacred groves; ex situ: zoos, seed banks, cryopreservation). The Exemplar tests specific examples.

Which Class 12 Biology Exemplar Chapters Matter Most for NEET?

Use this table to plan your NCERT Exemplar Class 12 Biology PDF practice by NEET weightage.

Prioritise the ⭐⭐⭐ chapters of the NCERT Exemplar Class 12 Biology PDF first; together they carry most of the Class 12 Biology questions in NEET.

For the unit-wise syllabus, see the CBSE Class 12 Biology Syllabus, and keep the NCERT Class 12 Biology Book PDF open for reference while you solve.

How to Use the NCERT Exemplar Class 12 Biology PDF Effectively

Follow this approach to get the most out of the NCERT Exemplar Class 12 Biology PDF:

1. Complete the NCERT chapter first. Read every concept, understand all diagrams, and answer the in-text and chapter-end questions before opening the Exemplar for that chapter.
2. Attempt the MCQs in the NCERT Exemplar Class 12 Biology PDF without looking at answers. A wrong answer points to a specific concept gap.
3. Pay special attention to statement-based MCQs. Questions that ask you to pick the correct combination of statements are very common in NEET, and the Exemplar has many of them.
4. Use the answer key to verify, not to copy. For every wrong answer, go back to the exact line in NCERT you missed, and reread that section.
5. Prioritise high-weightage chapters. Use the NEET table above and spend more days on Chapters 4, 5, 2, 1, 7 and 6.
6. Keep an error log. Write down every Exemplar question you got wrong and why. Review it two weeks before your board exam and again before NEET.

Exemplar practice works best chapter by chapter alongside the biology NCERT class 12 textbook, so solve each Exemplar chapter right after you finish the same textbook chapter.

Where to find class 12 biology exemplar solutions

The NCERT Exemplar Class 12 Biology PDF gives answers to all MCQs and model answers to selected descriptive questions at the end of the book. For full explanations of the textbook questions, use eSaral's NCERT Solutions, and for concept videos by experienced eSaral NEET faculty, install the eSaral App.

Conclusion

3 Key Takeaways

1. Use the NCERT Exemplar Class 12 Biology PDF for every chapter. Its statement-based MCQs and descriptive questions are the closest free practice to NEET Biology.
2. Follow the right order. Finish the textbook chapter first, then the class 12 biology exemplar questions for that chapter, then previous year NEET questions.
3. Prioritise smartly. Genetics, Reproduction, Human Health and Disease and Evolution deserve the most Exemplar time.

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