The NEET Biology Syllabus has been released by NTA on its official website, neet.nta.nic.in. The NEET Biology Syllabus Includes NCERT-Based format, covering 10 chapters from Class 11 & 12.
In the NEET Exam, 90 questions are asked from biology, which carries 50% weightage, from Botany and Zoology.
- In NEET Biology, High-weightage topics include Human Physiology carrying (18-20%), Genetics & Evolution (16–18%), and Cell Biology + Ecology (20%).
- The NEET Class 11 Biology Topics include Diversity, Structural Organisation, Cell Biology, Plant Physiology and Human Physiology.
- The NEET Class 12 Biology Topics include Reproduction, Genetics, Biotechnology, Human Welfare and Ecology.
As around 3 months are left for the exam, you should solve at least 40 full-length mock tests & 60-80 chapter-based tests for effective revision.
Check:
- NEET Biology Question Papers with solution PDFs
- NEET Biology Preparation Tips: Chapter-Wise Tips, Study Notes & Books
In this Article, you can check the NEET Biology Syllabus 2026, including the Weightage, Exam-pattern & Preparation Tips.
What is the NEET Biology Syllabus 2026?
The NEET Biology Syllabus includes the list of topics from which the 90 biology questions are asked in the NEET UG Exam. It will test your conceptual clarity, diagram-based understanding, and preparation of NCERT-Topics.
The NEET Biology Syllabus follows the NCERT Class 11 & 12 format and a similar syllabus pattern as NEET 2025.
NEET Biology Syllabus 2026 Overview
| Parameter | Details |
|---|---|
| Total Biology Questions | 90 out of 180 |
| Weightage in NEET | 50% of total paper |
| Source of syllabus | NCERT Class 11 & 12 |
| Total units | 10 core units |
| Sections | Botany + Zoology |
| High-weightage areas | Human Physiology, Genetics, Cell Biology, Ecology |
| Question types | NCERT line-based diagrams, assertion-reason |
| Expected NCERT dependency | 85–90% direct concepts |
| Difficulty trend | Easy to moderate with a conceptual focus |
| Preparation priority | PYQs + NCERT revision + mock tests |
Check:
- NEET Biology Mock Test: Free- Attempt Online Free Biology Mock Test
- NEET Updated Subject-Wise Syllabus
Ques. Has NTA made any topic-wise deletions or restorations in the NEET Biology 2026 syllabus compared to 2025?
Ans. The NEET Biology Syllabus 2026 follows the NCERT-based pattern as released by NTA and as per the NMC Notification.
No major new chapters have been added, and some topics that were previously removed are excluded.
| Aspect | Status for 2026 |
|---|---|
| Major additions | None introduced |
| Deleted topics restored | No major restorations |
| Syllabus base | Rationalised NCERT Class 11 & 12 |
| Focus areas | Genetics, Ecology, Physiology, Cell Biology |
| Strategy impact | Emphasis on revision and MCQ practice |
Ques. How much of the NEET Biology paper is directly based on NCERT lines and diagrams?
Ans. In NEET Biology, most of the sections are directly from NCERT, from textbook statements, tables, and diagrams.
- Around 80 to 90% questions can be solved by the NCERT. Students ignoring the NCERT tables and examples often lose easy marks.
- Line-based questions dominate the major easy-to-moderate difficulty level.
NEET Biology Syllabus 2026: Latest Updates & Changes
The NEET Biology Syllabus follows a similar pattern to the previous year, including an NCERT-based structure. In both the syllabus & Exam Pattern, there are no major additions or deletions.
If you are going to appear for NEET 2026, you can check this video by @Vidya NEET Adda247 to know about the latest updates in the NEET 2026 Biology Syllabus.
NEET Biology Syllabus 2026: Unit-Wise Topics, Chapters & Analysis
The NEET Biology Syllabus covers 10 units from NCERT Class 11 and 12, which includes 90 questions for 360 marks in the exam.
Around 65 to 70% of questions are asked from the top 5 units, which makes unit-based preparation important for scoring 300+ marks in biology.
Check the complete syllabus with chapters, key topics, and analysis for each unit below:
NEET Biology Syllabus 2026: Class 11 Topics
- In NEET Class 11 topics, around 45% of the questions are from Human Physiology and Cell Biology, and 25-30 questions will be asked.
- Human Physiology carries the highest weightage in Class 11 and includes proper revision of diagrams and processes.
- As per the PYQs analysis, the repeated questions are from digestion enzymes, heart structure, and plant hormones every year.
| Unit | Chapter | Complete Topics Included |
|---|---|---|
| Diversity in the Living World | The Living World | Biodiversity, taxonomy, systematics, nomenclature rules, binomial nomenclature, taxonomic hierarchy, species concept, taxonomical aids |
| Biological Classification | Five-kingdom system: archaea, eubacteria, cyanobacteria, protists, fungi, viruses, viroids, lichens | |
| Plant Kingdom | Algae groups, bryophytes, pteridophytes, gymnosperms, plant life cycles, alternation of generations | |
| Animal Kingdom | Basis of classification, symmetry, coelom, phyla, chordates, vertebrate classes | |
| Structural Organisation | Morphology of Flowering Plants | Root, stem, leaf, phyllotaxy, inflorescence, flower, fruit, seed, plant families |
| Anatomy of Flowering Plants | Plant tissues, tissue systems, xylem, phloem, dicot/monocot stem & root, secondary growth | |
| Structural Organisation in Animals | Animal tissues, cockroach morphology, and frog anatomy basics | |
| Cell Structure & Function | Cell: The Unit of Life | Cell theory, prokaryotic vs eukaryotic cells, organelles, plasma membrane, transport |
| Biomolecules | Proteins, carbohydrates, lipids, nucleic acids, enzymes, metabolism | |
| Cell Cycle & Division | Cell cycle phases, mitosis, meiosis, and regulation | |
| Plant Physiology | Photosynthesis | Light reaction, Calvin cycle, C3/C4 plants, factors affecting photosynthesis |
| Respiration in Plants | Glycolysis, Krebs cycle, ETC, fermentation | |
| Plant Growth & Development | Plant hormones, growth phases, photoperiodism, vernalisation | |
| Human Physiology | Digestion & Absorption | Digestive system, enzymes, absorption, disorders |
| Breathing & Exchange | Respiratory organs, lung volumes, and gas transport | |
| Body Fluids & Circulation | Blood, heart, cardiac cycle, ECG | |
| Excretion | Kidney, nephron, urine formation | |
| Locomotion & Movement | Bones, muscles, joints | |
| Neural Control | Neurons, brain, reflex action | |
| Chemical Coordination | Endocrine glands, hormones |
NEET Biology Syllabus 2026: Class 12 Topics
- In CBSE Class 12, around 55% of biology questions are asked from Genetics, Ecology and Reproduction, including the highest-weightage sections.
- The Genetics and Molecular Biology section includes 15-18 questions on DNA Reproduction, transcription and translation, and Mendelian Genetics.
- The questions from Reproduction and Biotechnology are mostly directly NCERT-based, including diagrams, and are frequently asked.
| Unit | Chapter | Complete Topics Included |
|---|---|---|
| Reproduction | Reproduction in Organisms | Asexual vs sexual reproduction, life span, and modes |
| Sexual Reproduction in Flowering Plants | Flower structure, microsporogenesis, pollination, fertilisation, and seed formation | |
| Human Reproduction | Male & female systems, gametogenesis, menstrual cycle, pregnancy | |
| Reproductive Health | Contraception, infertility, STDs, population control | |
| Genetics & Evolution | Principles of Inheritance | Mendel’s laws, dihybrid cross, pedigree analysis, mutations |
| Molecular Basis of Inheritance | DNA structure, replication, transcription, translation, and regulation | |
| Evolution | Origin of life, natural selection, Hardy-Weinberg, human evolution | |
| Biology in Human Welfare | Human Health & Disease | Pathogens, immunity, vaccines, AIDS, cancer |
| Microbes in Human Welfare | Antibiotics, fermentation, sewage treatment, and biogas | |
| Biotechnology | Biotechnology: Principles | Genetic engineering tools, PCR, cloning, vectors |
| Biotechnology Applications | GM crops, insulin production, gene therapy, and ethics | |
| Ecology & Environment | Organisms & Populations | Adaptations, population growth, interactions |
| Ecosystem | Energy flow, food chains, ecological pyramids | |
| Biodiversity & Conservation | Hotspots, conservation methods | |
| Environmental Issues | Pollution, ozone depletion, and climate change |
Also, Check:
Ques. Are both Botany and Zoology equally important for scoring 300+ in NEET Biology 2026?
Ans. The NEET Biology Section includes 90 questions, divided into Botany and Zoology. Whereas the distribution is balanced, giving more scoring opportunities through human physiology and genetics-based questions.
- For 300+ strong performance is required in both sections. Zoology units like Human Physiology and Genetics are high-yield.
- The Botany provides easier scoring via NCERT-line questions, with balanced preparation, the section-wise score drop will be prevented.
Ques. Which Class 11 vs Class 12 Biology topics dominate the NEET question paper trend?
Ans. In NEET, Class 12 carries a higher weightage than Class 11 because of conceptual depth and application-based questions.
| Class Level | Expected Share | Dominant Units |
|---|---|---|
| Class 11 | 45% | Physiology, Cell Biology, Plant Physiology |
| Class 12 | 55% | Genetics, Ecology, Biotechnology, Reproduction |
Ques. Which units carry the highest question weightage in NEET Biology based on the last 5-year trends?
Ans. As per the NEET Previous year trends, some chapters carry high weightage every year, which makes them important for scoring.
| Unit | Avg. Questions |
|---|---|
| Human Physiology | 18–20 |
| Genetics & Evolution | 14–16 |
| Ecology & Environment | 10–12 |
| Cell Structure & Function | 8–10 |
| Plant Physiology | 6–8 |
NEET Biology Study Notes
The NEET Biology study notes are concise, framed versions meant to help a student rapidly grasp key concepts and consequently evolve in a brief period.
These notes capture all the required definitions, diagrams, formulas, and practice questions.
It is an important means of last-minute revision and reinforcement for the topics relevant to the exam.
NEET Biology Syllabus: Topic-Wise Weightage
The NEET Biology syllabus carries 360 marks and is divided between Class 11 and Class 12 topics.
- About 45% of questions come from Class 11, which deals with the basics like Diversity and Cell Structure.
- While 55% are from Class 12, which deals with Genetics, Ecology, and Human Physiology.
- Most questions are NCERT-based, testing both concepts and applications.
Class 11 Biology Topic-Wise Weightage
The Class 11 Biology syllabus for NEET 2026 includes the foundational topics that form the basis for more advanced biological concepts in later classes, focusing on core areas of Botany and Zoology.
| Unit/Topic | Key Concepts | Approximate Weightage |
|---|---|---|
| Diversity in the Living World | Classification of Life Forms, Five Kingdoms, Phyla of Animals, Plant Classification | 8-10% |
| Structural Organisation in Animals and Plants | Morphology of Plants, Animal Tissues, Plant Anatomy, Animal Anatomy | 10-12% |
| Cell Structure and Function | Cell Theory, Prokaryotic & Eukaryotic Cells, Organelles, Cell Cycle | 7-9% |
| Plant Physiology | Photosynthesis, Respiration, Transport in Plants, Growth and Development | 10-12% |
| Human Physiology | Digestion, Breathing, Blood Circulation, Excretion, Locomotion | 12-14% |
Class 12 Biology Topic-Wise Weightage
The Class 12 Biology syllabus is an expansion of the content learned in Class 11, advancing into more complicated topics related to Genetics, Ecology, and Biotechnology, which play a significant role in medical entrance exams like NEET 2026.
| Unit/Topic | Key Concepts | Approximate Weightage |
|---|---|---|
| Reproduction | Sexual and Asexual Reproduction, Human Reproductive System | 8-10% |
| Genetics and Evolution | Heredity, Mendel’s Laws, Molecular Genetics, Evolution | 12-14% |
| Biotechnology and Its Applications | Genetic Engineering, Applications in Medicine & Agriculture | 8-10% |
| Ecology and Environment | Ecosystems, Biodiversity, Environmental Issues, Pollution | 10-12% |
Check: NEET Biology Chapter-Wise Weightage: Important Topics & Marks
NEET Biology Exam Pattern
The NEET Biology carries the highest weightage section in NEET, including 90 questions from both botany and zoology, following a fixed-question format and negative marking.
The Marking Scheme followed in the exam will be +4 for each correct answer, and -1 will be deducted for an incorrect answer.
Also, Check: NEET Section-Wise Exam Pattern
NEET Biology 3 Months Preparation Strategy
As around 3 months are left for the NEET Biology Exam, around 85 to 90% questions are directly from the NCERT.
With proper revision, PYQs and diagram-based learning in the last 90 days can improve your accuracy and rank.
3-Month NEET Biology Preparation Plan
| Month | Preparation Focus | Chapters/Units Priority | Practice Strategy | Revision Goal |
|---|---|---|---|---|
| Month 1 | Complete NCERT syllabus + basics strengthening | Class 11 units: Diversity, Plant Physiology, Human Physiology | 80–100 MCQs/day + PYQs of each chapter | First full syllabus coverage |
| Month 2 | Class 12 high-weight chapters + diagrams | Genetics, Biotechnology, Ecology, Reproduction | Chapter-wise tests + 120 MCQs/day | Second reading + weak areas fix |
| Month 3 | Full revision + mock tests | Mixed Class 11 & 12, NCERT line-by-line | Full-length tests (every 2–3 days) | 3rd revision + error notebook |
Preparation Strategy for Scoring 340+ in NEET Biology in One Month
Scoring 340 in NEET Biology can be achievable in a month if you concentrate and work with an effective strategy.
This will include proper time management, rigorous revision, and a targeted study plan to cover only the high-weightage topics and optimise your concepts.
Below is a concise day-wise preparation strategy plan:
| Day | Topic Focus | Key Activities |
|---|---|---|
| Day 1-3 | Class 11 - Diversity in Living World, Cell Structure and Function | Study classification, biological kingdoms, cell organelles, and cell division. Practice diagrams for plant and animal cells. |
| Day 4-6 | Class 11 - Human Physiology, Plant Physiology | Focus on digestion, respiration, transport in plants, and photosynthesis. Revise key processes and functions. |
| Day 7-10 | Class 12 - Reproduction, Genetics and Evolution | Study human reproduction, Mendelian inheritance, and gene regulation. Solve numerical problems for genetics. |
| Day 11-13 | Class 12 - Biotechnology and Its Applications, Ecology | Learn biotechnological methods, applications in agriculture and medicine, and ecosystem dynamics. |
| Day 14-16 | Class 12 - Reproductive Health, Human Health, and Disease | Understand contraceptive methods, diseases, immunity, and related disorders. Revise the immune system. |
| Day 17-19 | Class 11 - Structural Organisation in Animals and Plants | Study morphology and anatomy, focusing on plant tissues and animal systems (circulatory, digestive). Practice diagrams. |
| Day 20-23 | Class 11 - Plant Physiology, Human Physiology (Revise) | Revise photosynthesis, plant hormones, and human organ systems. Review key terms and concepts. |
| Day 24-26 | Class 12 - Genetics (Advanced), Ecology and Environment | Focus on molecular genetics, population genetics, and environmental issues. Solve practice questions. |
| Day 27-28 | Revision of All Topics (Class 11 + Class 12) | Revise weak areas, go through summary notes, and solve past year papers. |
| Day 29-30 | Mock Tests and Final Review | Take full-length mock tests, review wrong answers, and analyse time management. Focus on weak topics. |
Also, Check:
Ques. How many full-length Biology tests should be attempted in the final 3 months?
Ans. Regular testing is important in biology to improve the score and accuracy. In the final phase, you should attempt a mix of section-wise and full-length mock tests.
- Attempt 20–25 full-length Biology tests in the last 90 days.
- Add 2–3 sectional tests weekly for weak units.
- Maintain a test-analysis notebook.
- Focus on reducing silly mistakes.
- Aim for a 320+ Biology score in mocks before the exam.
Ques. Should students prioritise Class 12 Biology over Class 11 in the final revision phase?
Ans. The Class 12 Biology topics carry higher weightage and more conceptually based questions.
However, if you ignore class 11 marks, your easy marks will be lost from factual and diagram-based topics.
| Class | Priority Level | Reason |
|---|---|---|
| Class 12 | High | Genetics, Ecology, Biotech |
| Class 11 | Moderate-High | Physiology, Diversity |
Ques. How to divide time between NCERT revision, PYQs, and mock tests daily?
Ans. A Structured daily plan will follow retention and application. As most of the high scorers follow proper revision in the last 3 months.
| Activity | Daily Time | Focus |
|---|---|---|
| NCERT revision | 2–3 hrs | Completely |
| MCQs/PYQs | 1.5–2 hrs | Chapter-wise practice |
| Mock/test analysis | 1–2 hrs | Error tracking |
Best Books for NEET Biology Syllabus 2026
As biology carries the highest weightage in NEET, the proper book selection can directly impact your score.
According to the experts, the NCERT Class 11 & 12 books should be the primary source, as 85-90% questions are from NCERT, and using reference books only for MCQs, diagrams, and concept clarity.
Recommended Books for NEET Biology 2026
| Book Name | Author/Publisher | Best For | How to Use |
|---|---|---|---|
| NCERT Biology (Class 11 & 12) | NCERT | Core theory, diagrams, definitions | Read line-by-line; revise 3–4 times before the exam |
| Trueman’s Elementary Biology Vol 1 & 2 | K.N. Bhatia & M.P. Tyagi | Detailed theory beyond NCERT | Use for weak chapters like Genetics, Physiology |
| Objective NCERT at Your Fingertips – Biology | MTG | Chapter-wise MCQ practice | Daily practice after finishing each chapter |
| Objective Biology | Dinesh Publications | Advanced MCQs & NEET pattern questions | Use in the last 4–5 months for speed practice |
| Pradeep’s Biology | Pradeep Publications | Concept clarity + diagrams | Refer to complex topics and revision notes |
| Errorless Biology | Universal | PYQs + large question bank | Best for revision and full-length practice |
| 38 Years NEET Biology PYQs | MTG/Arihant | Trend analysis & previous questions | Solve after syllabus completion |
Also, Check: Best NEET Books for Beginners
NEET Biology Previous Year Question Paper
NEET Biology Syllabus FAQs
Ques. How many questions are typically asked in Genetics, Ecology, and Human Physiology?
Ans. In NEET, Genetics, Ecology, and Human Physiology are considered the backbone of the Biology Syllabus. Together, they include more than 35-45 questions.
- Genetics questions often include more numerical and pedigree problems.
- The Human Physiology covers multiple systems with diagram-based MCQs.
- The Ecology is considered the most scoring unit.
- With Strong preparation in these units, you can score 250+ Biology marks.
Ques. Are diagram-based questions increasing in the NEET Biology unit-wise distribution?
Ans. In Recent year, the usage of diagram & figure-based questions has increased in NEET, especially in Anatomy, cell biology and biotechnology.
- Many questions now test the label identification, processes, and structures.
- In NEET, around 8 to 12 questions every year involve diagrams.
- Human Physiology and Plant Anatomy produce most diagram-based MCQs.
- Students should practice labelling from the NCERT figures as well.
- Diagram questions are usually easy if visuals are memorised.
Ques. How should students revise high-weightage Biology units in the last 60 days?
Ans. In the last 60 days, focus more on high-weightage units like Human Physiology, Genetics, Ecology, and Cell Biology.
Most toppers shift to multiple NCERT revisions, PYQs, and unit tests instead of new content.
| Phase | Focus | Output Goal |
|---|---|---|
| Days 60–30 | Revise top 5 units + MCQs | 2 NCERT revisions |
| Days 30–15 | Full syllabus revision | 1 mock every 2–3 days |
| Last 15 days | Weak areas + diagrams | Daily mixed tests |
Ques. What score in Biology is considered safe for government MBBS admission in recent years?
Ans. A high score in biology is important to secure a government MBBS seat. As per the recent trends, the high-ranked candidates score well above average in this section.
| Biology Score | Admission Chances |
|---|---|
| 330–350 | Top colleges |
| 300–320 | Safe govt MBBS range |
| 260–290 | Borderline govt seats |
Ques. How does the difficulty impact overall NEET cutoff trends annually?
Ans. As Biology is comparatively easier, there can be a rise in cutoff because some students score higher in this section.
With a tougher biology exam, the cutoff can be low, but there can be an increase in rank variation.
- Easy Biology - higher cutoff (620–650 range).
- Tough Biology - slightly lower cutoff.
- Biology accuracy drives the final rank.
- Even small mistakes can shift thousands of ranks.
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