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By rohit.pandey1
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Updated on 17 Mar 2026, 12:58 IST
NEET Biology Syllabus 2026 is not just another document — it is the blueprint that determines whether you clear NEET Exam or not. Biology accounts for 360 out of 720 marks, which is exactly 50% of your total score. No other section comes close. Physics and Chemistry together make up the remaining 50%. This means that a student who masters Biology has already won half the battle before writing a single answer in the exam hall.
The official NEET Biology Syllabus 2026 was released by the National Testing Agency (NTA) in January 2026, following the guidelines set by the National Medical Commission (NMC). The good news for students and droppers: the NEET 2026 syllabus is largely unchanged from 2025, with only minor NCERT-aligned deletions and no full chapter removals. There are no surprise additions or sweeping reductions.
The NEET UG Biology Syllabus 2026 is drawn entirely from NCERT Class 11 and Class 12 Biology textbooks, spread across 10 units and approximately 38 chapters. It covers two main domains: Botany (Plant Biology) and Zoology (Animal Biology), each contributing roughly equal weight to the question paper.
| Parameter | Details |
| Conducting Body | National Testing Agency (NTA) |
| Syllabus Prescribed By | National Medical Commission (NMC) |
| Total Marks (Biology) | 360 out of 720 |
| Total Questions | 90 (Section A: 35 + Section B: 15 attempt 10 per subject) |
| Number of Units | 10 (5 from Class 11 + 5 from Class 12) |
| Approximate Chapters | 38 |
| Based On | NCERT Class 11 & 12 Biology |
| Syllabus Released | January 2026 |
| NEET 2026 Exam Date | 4 May 2026 |
| Changes from 2025 | Minor NCERT-aligned deletions only |
The official NEET Biology Syllabus 2026 PDF is available on the NTA official website (nta.ac.in) and neet.nta.nic.in. Students are strongly advised to download the original NTA PDF and verify it against any third-party sources before beginning preparation.
The NEET UG Biology Syllabus 2026 is divided into 10 units — 5 from Class 11 and 5 from Class 12. Below is the complete, detailed, chapter-wise and topic-wise breakdown drawn directly from the NTA official document.
Chapters: Diversity in the Living World, Plant Kingdom, Animal Kingdom
Key Topics:
Chapters: Morphology of Flowering Plants, Anatomy of Flowering Plants, Structural Organisation in Animals
Key Topics:
Chapters: Cell: The Unit of Life, Biomolecules, Cell Cycle and Cell Division
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Key Topics:
Chapters: Transport in Plants, Mineral Nutrition, Photosynthesis in Higher Plants, Respiration in Plants, Plant Growth and Development
Key Topics:
Chapters: Digestion and Absorption, Breathing and Exchange of Gases, Body Fluids and Circulation, Excretory Products and their Elimination, Locomotion and Movement, Neural Control and Coordination, Chemical Coordination and Integration
Important Topics:
Also Check: NEET 2026 Exam Date
Chapters: Reproduction in Organisms, Sexual Reproduction in Flowering Plants, Human Reproduction, Reproductive Health
Important Topics:
Chapters: Principles of Inheritance and Variation, Molecular Basis of Inheritance, Evolution
Important Topics:
Chapters: Human Health and Diseases, Strategies for Enhancement in Food Production, Microbes in Human Welfare
Important Topics:
Chapters: Biotechnology: Principles and Processes, Biotechnology and its Applications
Important Topics:
Chapters: Organisms and Populations, Ecosystem, Biodiversity and Conservation, Environmental Issues
Important Topics:
One of the most common questions students ask is how the NEET Biology Syllabus 2026 splits between Botany and Zoology. Understanding this helps you allocate study time smartly.
| Class | Chapter/Unit | Key Sub-topics |
| 11 | Diversity in Living World | Algae, Bryophytes, Pteridophytes, Gymnosperms, Angiosperms |
| 11 | Morphology of Flowering Plants | Root, Stem, Leaf, Flower, Fruit, Seed; Fabaceae, Solanaceae, Liliaceae |
| 11 | Anatomy of Flowering Plants | Meristems, Tissue systems, Secondary growth |
| 11 | Cell Structure and Function | Cell organelles, Biomolecules, Cell division |
| 11 | Plant Physiology | Transport, Mineral Nutrition, Photosynthesis, Respiration, Growth |
| 12 | Sexual Reproduction in Flowering Plants | Gametophytes, Pollination, Double Fertilization, Embryogenesis |
| 12 | Principles of Inheritance | Mendel's Laws, Chromosomal theory |
| 12 | Molecular Basis of Inheritance | DNA, Replication, Transcription, Translation |
| 12 | Strategies for Enhancement | Plant Breeding, Tissue Culture |
| 12 | Biotechnology | Recombinant DNA Technology, Bt crops |
| 12 | Ecology | Ecosystems, Biodiversity, Environmental Issues |
| Class | Chapter/Unit | Key Sub-topics |
| 11 | Animal Kingdom | Classification of Non-Chordates and Chordates |
| 11 | Structural Organisation in Animals | Tissues, Earthworm, Cockroach, Frog |
| 11 | Human Physiology | All 7 chapters (Digestion, Breathing, Circulation, Excretion, etc.) |
| 12 | Human Reproduction | Male/Female systems, Gametogenesis, Fertilization, Pregnancy |
| 12 | Reproductive Health | STDs, Contraception, Infertility, ART |
| 12 | Genetics and Evolution | Mendelian Disorders, Chromosomal Disorders, Hardy-Weinberg |
| 12 | Human Health & Disease | Pathogens, Immunity, Cancer, AIDS |
| 12 | Microbes in Human Welfare | Food, Industrial, Sewage, Biocontrol |
| 12 | Biotechnology Applications | Gene therapy, Transgenic animals, Ethical issues |
The chapter-wise weightage table below is based on NEET Previous Year Question Papers from 2017 to 2025, covering 9 years of exam data. This is the most reliable predictor of question distribution for NEET 2026 Biology.
| Chapter | Average Questions (per year) | Expected Weightage % |
| Molecular Basis of Inheritance | 10–12 | 13–14% |
| Photosynthesis in Higher Plants | 4–6 | 6–8% |
| Cell Cycle and Cell Division | 5–7 | 7–9% |
| Sexual Reproduction in Flowering Plants | 4–6 | 6–7% |
| Plant Kingdom | 3–5 | 5–6% |
| Morphology of Flowering Plants | 3–5 | 4–5% |
| Plant Growth and Development | 3–4 | 4–5% |
| Anatomy of Flowering Plants | 2–4 | 3–4% |
| Transport in Plants | 2–3 | 3–4% |
| Respiration in Plants | 2–3 | 3–4% |
| Mineral Nutrition | 2–3 | 2–3% |
| Biodiversity and Conservation | 3–4 | 4–5% |
| Ecosystem | 3–5 | 5–6% |
| Environmental Issues | 2–3 | 3–4% |
| Biotechnology: Principles & Processes | 3–5 | 4–6% |
| Biotechnology and Its Applications | 3–4 | 4–5% |
| Chapter | Average Questions (per year) | Expected Weightage % |
| Human Physiology (all chapters combined) | 18–22 | 20–25% |
| Genetics and Evolution | 12–15 | 14–17% |
| Animal Kingdom | 4–6 | 5–7% |
| Human Reproduction | 4–6 | 5–7% |
| Principles of Inheritance and Variation | 5–7 | 6–8% |
| Human Health and Disease | 3–5 | 4–6% |
| Organisms and Populations | 3–5 | 4–6% |
| Reproductive Health | 2–4 | 3–4% |
| Microbes in Human Welfare | 2–3 | 3–4% |
| Structural Organisation in Animals | 2–3 | 2–3% |
| Evolution | 3–4 | 3–5% |
These 8 chapters alone account for approximately 55–65% of all Biology questions in NEET. Prioritize these without exception:
The NEET UG Biology Syllabus 2026 is largely identical to the 2025 syllabus. The NTA/NMC did not announce any sweeping reductions or new additions. However, based on rationalization of NCERT textbook update certain minor sub-topics are no longer part of the prescribed curriculum.
Important: No full chapter has been removed from the NEET Biology 2026 syllabus. Deletions are of specific sub-topics only.
| Class | Unit/Chapter | Deleted/Reduced Sub-topics |
| 11 | Diversity in Living World | Some detailed taxonomic aids content (not core classification) |
| 11 | Morphology of Flowering Plants | Specific examples from old NCERT families no longer in new NCERT editions |
| 11 | Mineral Nutrition | Some detailed micro/macro-element sub-tables from old editions |
| 11 | Digestion and Absorption | Some detailed enzyme cascade sub-topics (retain main processes) |
| 11 | Transport in Plants | Older xylem pressure flow details revised per new NCERT |
| 12 | Reproduction in Organisms | Some detailed asexual reproduction sub-type descriptions |
| 12 | Strategies for Enhancement | Certain detailed animal husbandry sub-topics |
| 12 | Ecology | Ecological succession sub-types (primary vs secondary — retain definitions) |
| 12 | Environmental Issues | Some older case study references replaced in new NCERT |
Note on NCERT Editions: Students should use the latest edition of NCERT Class 11 and Class 12 Biology textbooks (post-2023 revision). New plant families added to the Morphology chapter (Malvaceae in some new editions) should be noted and studied.
Download: NEET 2026 Admit Card
Biology is the most scoring section in NEET UG — and also the most manageable, because 90%+ of questions come directly from NCERT lines. Here is a proven, structured strategy to score 340+ in NEET Biology 2026.
This is non-negotiable. NEET Biology questions are worded from NCERT sentences. Read Class 11 and Class 12 NCERT Biology cover-to-cover at least 3 times before the exam. Highlight every bold word, every definition, every table, and every exception. Pay special attention to footnotes and boxed text — NTA has pulled questions from these repeatedly.
Use the weightage table above. Start your preparation in this order:
NEET Biology consistently tests diagram-based questions. Learn to draw and label these diagrams from memory:
Solve NEET Previous Year Questions (PYQs) from 2017 to 2025 chapter-wise. PYQs are the best predictor of NEET 2026 Exam Patterns. Biology PYQs repeat in concept if not verbatim — especially in Animal Kingdom, Morphology, and Ecology. At minimum, solve last 7 years' PYQs for each chapter.
While NCERT is sufficient for 85–90% of questions, the following books help cover edge cases:
| Book | Use |
| NCERT Class 11 & 12 Biology | Primary and mandatory |
| Trueman's Objective Biology (Vol 1 & 2) | Comprehensive MCQ practice |
| MTG Objective NCERT at Your Fingertips | NCERT-mapped MCQs |
| Dinesh Objective Biology | Additional reference |
| S. Chand's Biology by B.P. Pandey | Concept clarity |
| 40 Years NEET/AIPMT Chapterwise PYQs | PYQ practice (must-have) |
| Month | Focus |
| Month 1 | Human Physiology + Genetics & Evolution (complete + PYQs) |
| Month 2 | Ecology + Plant Physiology + Reproduction + Biotechnology |
| Month 3 | Animal Kingdom + Cell Biology + Diversity + Structural Organisation |
| Month 4 | Full revision + Mock tests + Weak chapter revision + PYQs |
Diagrams carry significant weight in NEET Biology — typically 10–15 questions per year are either directly from diagrams or require diagram-based reasoning. Below are the most important diagrams across the NEET Biology Syllabus 2026: Class 11 Diagrams:
Class 12 Diagrams:
| Chapter | Most Important NCERT Topics for NEET 2026 |
| Animal Kingdom | Porifera, Coelenterata, Platyhelminthes, Arthropoda, Chordata (chordates up to class) |
| Plant Kingdom | Life cycles, Alternation of generations, Differences between plant groups |
| Cell: Unit of Life | Prokaryote vs eukaryote; Endomembrane system; Centrosome |
| Biomolecules | Enzyme kinetics (Michaelis-Menten); Protein structure; RNA types |
| Cell Cycle | G1, S, G2, M phases; Mitosis stages; Meiosis I vs II |
| Photosynthesis | Z-scheme, Calvin cycle, Hatch-Slack pathway (C4), Photorespiration |
| Respiration | Glycolysis (10 steps key), TCA (8 steps), ATP yield; RQ values |
| Plant Hormones | Auxin, GA, Cytokinin, Ethylene, ABA — discovery, function, applications |
| Human Physiology | All mechanisms, hormones, disorders (especially renal, cardiac, neural) |
| Reproduction | Gametogenesis; Menstrual cycle hormones; ART types |
| Genetics | Dihybrid cross; Incomplete dominance; Linkage; Sex determination |
| Molecular Biology | Replication enzymes; Transcription factors; Genetic code properties |
| Biotechnology | Tools (restriction enzymes, vectors, gel electrophoresis); Applications |
| Ecology | Population equations (logistic growth); Energy pyramids; Biogeochemical cycles |
| Human Health | Malaria life cycle; Immunity types; Carcinogenesis; AIDS mechanism |
To complement your understanding of the NEET Biology Syllabus 2026, here are the most useful additional resources:
The NEET Biology Syllabus 2026 is your most powerful weapon in the NEET UG examination — because Biology alone determines your rank more than any other section. With 360 marks at stake, every chapter, every diagram, and every NCERT line matters. Here is your 3-point action plan starting today:
NEET 2026 is on 4 May 2026. You have enough time if you start now. Use this page as your reference checkpoint, return whenever you need the chapter list, weightage table, or preparation strategy — and go score that 360.
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No, the NEET Biology Syllabus 2026 has not undergone any major changes. The National Testing Agency (NTA), following NMC guidelines, released the syllabus in January 2026 and it remains largely identical to the 2025 syllabus. There are minor deletions of a few sub-topics (aligned with NCERT textbook updates), but no full chapters have been added or removed. Students who prepared for NEET 2025 will find the 2026 syllabus familiar and do not need to restructure their preparation significantly.
The NEET Biology Syllabus 2026 covers 10 units spread across approximately 38 chapters from NCERT Class 11 and Class 12 Biology. Class 11 contributes 5 units (covering Diversity, Structural Organisation, Cell Biology, Plant Physiology, and Human Physiology), and Class 12 contributes 5 units (covering Reproduction, Genetics & Evolution, Biology in Human Welfare, Biotechnology, and Ecology). Each unit contains 2–7 chapters.
Based on last 9 year NEET paper analysis, the highest-scoring chapters in NEET Biology 2026 are: (1) Human Physiology — ~20–25% (18–22 questions) (2) Genetics & Evolution — ~17–20% (15–18 questions) (3) Ecology & Environment — ~12–15% (10–13 questions) (4) Plant Physiology — ~11–14% (10–12 questions) (5) Biotechnology — ~8–11% (7–10 questions) Mastering these 5 areas alone can secure approximately 60–70 questions out of 90.
Yes — NCERT is the foundation and is sufficient for scoring 300–320+ in NEET Biology 2026. Studies of NEET PYQs show that 85–90% of Biology questions are directly from NCERT text, tables, diagrams, or examples. However, for scoring 340+ and targeting top medical colleges, you should supplement NCERT with one MCQ practice book (Infinity Learn mock test) and thorough PYQ analysis. NCERT must be read multiple times — not just once.
No full chapters have been removed from the NEET Biology 2026 syllabus. However, certain sub-topics have been deleted or reduced based on the latest NCERT textbook revision. These include some detailed taxonomic aids content (Class 11), specific sub-type descriptions in Reproduction in Organisms, and certain older case studies in Environmental Issues. Students should cross-check their preparation with the official NTA syllabus PDF to confirm excluded sub-topics.
NEET 2026 Biology section has 90 questions carrying a total of 360 marks. Each correct answer earns +4 marks, while each incorrect answer results in a -1 mark penalty. The questions are split between Section A (35 compulsory questions) and Section B (15 questions, attempt any 10). Biology questions are sourced equally from Botany and Zoology sub-sections.
The best books for NEET Biology 2026 preparation are:
Primary (must): NCERT Class 11 & 12 Biology (latest edition)
MCQ Practice: Trueman's Objective Biology (Vol 1 & 2)
NCERT-Mapped MCQs: MTG Objective NCERT at Your Fingertips — Biology
PYQ Collection: 40 Years NEET/AIPMT Chapterwise Solutions — Biology
Student surveys and question-difficulty data consistently identify the following as the most challenging chapters in NEET Biology:
Molecular Basis of Inheritance — High conceptual and factual density; replication enzymes, lac operon, genome data
Cell Cycle and Biomolecules — Enzyme kinetics and meiosis stages confuse many
Plant Physiology — Photosynthesis biochemistry (C3/C4/CAM), Krebs cycle steps
Human Physiology (Excretion & Neural Control) — Detailed mechanisms, disorders, hormone interactions
Ironically, these hard chapters are also the most rewarding — because their questions repeat year after year.
The most effective NEET Biology 2026 preparation plan involves: (1) Reading NCERT 3+ times with active highlighting; (2) Prioritizing high-weightage chapters (Human Physiology, Genetics, Ecology) first; (3) Drawing and redrawing important diagrams from memory; (4) Solving chapter-wise PYQs from 2017–2025 after finishing each chapter; (5) Taking full-length mock tests weekly in Month 3 and 4; (6) Revising weak topics every Sunday; and (7) Never leaving any unit completely unprepared, as NEET asks 2–3 surprise questions from unexpected places every year.
Historically, Botany and Zoology each account for approximately 45 questions (50:50) in NEET Biology. However, in practice, the distribution shifts by 2–5 questions in either direction each year. In recent NEET exams (2022–2025), Zoology (especially Human Physiology and Genetics) has contributed slightly more questions due to the larger chapter volume. There is no official Botany vs Zoology split — the division is based on chapters, not fixed percentages.
Based on PYQ analysis (2017–2025), Class 12 Biology contributes approximately 50–55 questions (56–61%) and Class 11 Biology contributes approximately 35–40 questions (39–44%). This happens because Class 12 units (Genetics, Ecology, Reproduction, Biotechnology) are concept-heavy and produce more questions. This is why many toppers recommend completing Class 12 Biology before Class 11 during NEET preparation.
Yes — the NEET Biology Syllabus 2026 can be completed in 3 months with a focused daily schedule of 4–5 hours of Biology study. Month 1 should cover the two highest-weightage units (Human Physiology + Genetics & Molecular Biology). Month 2 should cover Ecology + Plant Physiology + Reproduction + Biotechnology. Month 3 should cover remaining chapters + full revision + mock tests. A fourth month is ideal for mock test series and final revision. Students starting 6+ months before May 2026 have a significant advantage.