Download NCERT Exemplar Class 12 Biology PDF 2026-27

NCERT Biology Exemplar for Class 12 works as a solid support tool for students who struggle with concepts and diagrams. It helps them move past rote memorization and actually understand biological ideas in a more connected, meaningful way. 

The NCERT Exemplar Class 12 Biology follows the CBSE exam pattern and rely heavily on application and reasoning-based questions. It helps build conceptual clarity and gets students ready for exams, with chapter-wise PDFs, solved questions, and a simple approach to using it well. 

Download Class 12 NCERT Exemplar Biology PDF

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Check the updated CBSE Class 12 Biology Syllabus for revised chapters, unit-wise weightage, and latest exam pattern for 2026-27.

NCERT Exemplar Class 12 Biology Overview

The NCERT Exemplar Class 12 Biology is a powerful tool that supports the understanding from NCERT Biology textbooks by provisioning deeper conceptual understanding. While the textbook forms the base, the exemplar makes it stronger. 

Based on the latest CBSE curriculum, the exemplar focuses on key topics like Genetics, Biotechnology, Human Physiology, and Ecology, helping students prepare confidently for both boards and competitive exams. 

Important Highlights: Class 12 Biology Exemplar 

• A mix of MCQs, assertion-reasoning, case-based, and descriptive questions for varied practice
• Stronger focus on concept clarity through diagram-based, learning with solutions. 
• Complete coverage of intricate concepts across all chapters in Grade 12 Biology.
• Useful for strengthening preparation for both CBSE board exams and competitive exams

NCERT Exemplar Biology vs NCERT Biology Textbook

The comparison table helps to understand the difference between the NCERT Biology Exemplar and the NCERT Biology Textbook, so you can see what the exemplar actually adds to a deeper grasp of the concepts 

Explore chapter-wise PDFs from NCERT Books Class 12 Biology for detailed theory, diagrams, and important concepts.

Chapter-wise Biology Exemplar Questions

The NCERT Class 12 Biology Exemplar focuses on providing additional practice to concepts and processes understood from Biology textbook. Here are some of the sample questions to better know what Biology exemplar is:  

Chapter 1: Reproduction in Organisms

Q1. Which of the following statements is incorrect?

1. Variation is more common in sexual reproduction
2. Sexual reproduction involves fusion of gametes
3. Asexual reproduction produces genetically identical offspring
4. Offspring in sexual reproduction are always identical to parents

Answer: D

Q2. Organisms reproducing by fragmentation include:

1. Hydra
2. Spirogyra
3. Yeast
4. Amoeba

Answer: B

Chapter 2: Sexual Reproduction in Flowering Plants

Q1. Double fertilization involves:

1. One male gamete
2. Two female gametes
3. Two male gametes
4. Three male gametes

Answer: C

Q2. The structure that develops into fruit is:

1. Ovary
2. Endosperm 
3. Embryo sac
4. Ovule 

Answer: A

Chapter 3: Human Reproduction

Q1. Capacitation of sperm occurs in:

1. Epididymis
2. Testis
3. Vas deferens
4. Female reproductive tract 

Answer: D

Q2. Which hormone is responsible for ovulation?

1. LH
2. FSH
3. Progesterone
4. Estrogen

Answer: A

Chapter 4: Reproductive Health

Q1. Which contraceptive method prevents implantation?

1. Oral pills
2. Condoms
3. Vasectomy
4. IUDs

Answer: D

Q2. MTP is generally considered safe during:

1. First trimester
2. Second trimester
3. Third trimester
4. After birth

Answer: A

Chapter 5: Principles of Inheritance and Variation

Q1. A cross AaBb × AaBb produces how many phenotypes?

1. 2
2. 9
3. 4
4. 16

Answer: C

Q2. Incomplete dominance results in:

1. One phenotype
2. Two phenotypes
3. Three phenotypes
4. Four phenotypes

Answer: C

Chapter 6: Molecular Basis of Inheritance

Q1. Which enzyme synthesizes RNA primer?

1. Ligase
2. DNA polymerase
3. Primase 
4. Helicare 

Answer: C

Q2. The lagging strand is synthesized:

1. Discontinuously
2. Continuously
3. Randomly
4. Bidirectionally

Answer: A

Chapter 7: Evolution

Q1. Analogous organs are a result of:

1. Divergent evolution
2. Convergent evolution
3. Adaptive radiation
4. Mutation

Answer: B

Q2. Hardy-Weinberg equilibrium is disturbed by:

1. Large population
2. Random mating
3. Gene migration
4. No mutation

Answer: C

Chapter 8: Human Health and Disease

Q1. Interferons are produced in response to:

1. Bacteria
2. Viruses
3. Protozoa
4. Fungi

Answer: B

Q2. Which cell type is affected by HIV?

1. RBC
2. B lymphocytes
3. Platelets
4. T helper cells

Answer: D

Chapter 9: Strategies for Enhancement in Food Production

Q1. Hybrid vigor is known as:

1. Selection
2. Heterosis
3. Inbreeding
4. Mutation

Answer: B

Q2. Which organism is used in single-cell protein?

1. Rhizobium
2. Lactobacillus
3. Penicillium
4. Spirulina

Answer: D

Chapter 10: Microbes in Human Welfare

Q1. Antibiotics are effective against:

1. Viruses
2. Bacteria
3. Algae
4. Protozoa

Answer: B

Q2. Methanogens are found in:

1. Soil
2. Rumen
3. Water
4. Air

Answer: B

Chapter 11: Biotechnology: Principles and Processes

Q1. Restriction enzymes cut DNA at:

1. Specific sequences
2. Random sites
3. Stop codon
4. Start codon

Answer: A

Q2. Vector used in gene cloning:

1. Ribosome
2. Plasmid
3. mRNA
4. tRNA

Answer: B

Chapter 12: Biotechnology and its Applications

Q1. RNA interference is used to:

1. Increase gene expression
2. Replicate DNA
3. Silence gene expression
4. Repair genes

Answer: C

Q2. Golden rice is rich in:

1. Iron
2. Vitamin A
3. Protein
4. Vitamin C

Answer: B

Chapter 13: Organisms and Populations

Q1. Logistic growth occurs when:

1. Resources are unlimited
2. Carrying capacity exists
3. No competition
4. No death rate

Answer: B

Q2. Competition leads to:

1.  Cooperation
2. Extinction
3. Mutualism
4. Parasitism

Answer: B

Chapter 14: Ecosystem

Q1. Pyramid of energy is always:

1. Circular
2. Linear
3. Upright
4. Inverted

Answer: C

Q2. 10% law is related to:

1. Population growth
2. Energy transfer
3. Evolution
4. Mutation

Answer: B

Chapter 15: Biodiversity and Conservation

Q1. Endemic species are:

1. Found everywhere
2. Restricted to a region
3. Migratory
4. Extinct

Answer: B

Q2. Red Data Book contains:

1. Economic data
2. Endangered species
3. Climate data
4. Soil data

Answer: B

Chapter 16: Environmental Issues

Q1. Biomagnification affects:

1. Producers
2. Top consumers
3. Decomposers
4. All equally

Answer: B

Q2. Eutrophication is caused by:

1. Noise pollution
2. Air pollution
3. Radiation
4. Nutrient enrichment

Answer: D

How to Make the Best Use of Biology NCERT Exemplar

The NCERT Exemplar works best when treated as a practice tool for additional practice after completion of NCERT textbook. Working through the Biology exemplar is about strengthening concepts step-by-step and improving how one  understands and applies biology. 

• Start only when concepts have been understood well from NCERT textbook.
• Don’t try to solve everything in one sitting. Focus on one chapter at a time for better clarity.
• While solving exemplar question, keep NCERT textbook closer to quickly revise related diagrams and processes. 
• Mark questions that  feel difficult, and once done with simple questions, come back to these. 
• Use the wrong options as clues, since they show exactly which concepts are still weak. 
• Practicing answer writing in steps, especially for those questions requiring long and reasoning-based questions. 
• Pair Exemplar practice with diagram revision, since Biology questions often depend on visuals.
• Treat it like a thinking exercise rather than a test, as this builds real understanding over time. 

Revise important diagrams, terminology, and concepts quickly with chapter-wise Class 12 Biology Notes for effective board exam preparation.

More Class 12 Resources

NCERT Books Class 12

CBSE Class 12 Syllabus

CBSE Class 12 Sample Papers

CBSE Class 12 Question Bank

CBSE Class 12 Previous Year Papers

CBSE Class 12 Important Questions

Tips on Using NCERT Biology Exemplar

Don’t treat the exemplar like just a question bank. It slowly builds thinking ability with the way questions are listed. 

• Read options carefully first to eliminate the wrong options before finding the correct one. 
• Ask yourself : “Where have I seen this idea in NCERT?” This builds strong linkage.
• Try answering in your head first before checking NCERT or notes as this improves recall speed.
• Note the diagram-based questions separately and connect them with the exact NCERT figure or flowchart.
• Revisit only wrong questions after a gap, not the full set. This saves time and improves weak areas faster.
• Mix chapters while revising Exemplar so your brain learns to switch topics quickly like in the exams.

FAQs

Q1. Is NCERT Exemplar Biology also helpful for NEET preparation?

Ans. Yes, NCERT Biology textbook sets the foundation and the exemplar Biology contributes to it, making it complete to begin NEET preparation with.

Q2. Which chapters are most important for conceptual understanding in NCERT Biology Exemplar?

Ans. Important chapters in Biology exemplar include Genetics, Biotechnology, Evolution, Human Physiology, and Ecology.

Q3. How does the Biology Exemplar help the weak students? 

Ans. NCERT Biology Exemplar contributes to the improvement in understanding of weak students by providing them with extra questions to practice. It also encourages students to think logically instead of memorising answers, which gradually builds confidence and accuracy in exams.

Q4. Is the NCERT Class 12 Biology Exemplar available to download online?

Ans. Yes, the NCERT Exemplar for Biology is available, both chapter-wise and complete book. Students can download it from the article above. 

Q5. Why is it important to solve the NCERT Exemplar for Class 12 Biology ?

Ans. NCERT Exemplar adds to the concepts understood from NCERT Biology textbook and so it makes it important to solve Biology Exemplar. Moreover, it helps students to understand how concepts are asked in different ways, making students familiar with the pattern of the exam.