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Complete NEET 2026 Biology syllabus with chapter-wise weightage, important topics, and preparation strategy. Updated as per NTA guidelines.
Remember these points for your NEET preparation
The NEET Biology syllabus covers Class 11 and Class 12 NCERT Biology. With 90 questions worth 360 marks, Biology is the highest-scoring subject in NEET. This guide covers every chapter with weightage analysis.
| Parameter | Details |
|---|---|
| Total Questions | 90 (45 Botany + 45 Zoology) |
| Total Marks | 360 |
| Type of Questions | MCQ with 4 options |
| Marking Scheme | +4 for correct, -1 for incorrect |
| Time for Biology | 100 minutes (recommended) |
| Chapter | Topics | Expected Questions |
|---|---|---|
| The Living World | Taxonomy, nomenclature, taxonomic categories | 1-2 |
| Biological Classification | Five kingdom classification, viruses, viroids | 2-3 |
| Plant Kingdom | Algae, bryophytes, pteridophytes, gymnosperms, angiosperms | 2-3 |
| Animal Kingdom | Classification from Porifera to Chordata | 3-4 |
Total Expected Questions: 8-12
High-Yield Topics:
| Chapter | Topics | Expected Questions |
|---|---|---|
| Morphology of Flowering Plants | Root, stem, leaf, flower, fruit, seed | 2-3 |
| Anatomy of Flowering Plants | Tissues, tissue systems, anatomy of organs | 2-3 |
| Structural Organisation in Animals | Animal tissues, organ systems | 2-3 |
Total Expected Questions: 6-9
High-Yield Topics:
| Chapter | Topics | Expected Questions |
|---|---|---|
| Cell: The Unit of Life | Cell theory, prokaryotic and eukaryotic cells, cell organelles | 3-4 |
| Biomolecules | Carbohydrates, proteins, lipids, nucleic acids, enzymes | 3-4 |
| Cell Cycle and Cell Division | Cell cycle, mitosis, meiosis | 2-3 |
Total Expected Questions: 8-11
High-Yield Topics:
| Chapter | Topics | Expected Questions |
|---|---|---|
| Transport in Plants | Water transport, transpiration, translocation | 2-3 |
| Mineral Nutrition | Essential minerals, deficiency symptoms | 2-3 |
| Photosynthesis | Light reaction, Calvin cycle, C3 and C4 pathways | 3-4 |
| Respiration | Glycolysis, Krebs cycle, ETC, fermentation | 2-3 |
| Plant Growth and Development | Plant hormones, photoperiodism, vernalization | 2-3 |
Total Expected Questions: 11-16
High-Yield Topics:
| Chapter | Topics | Expected Questions |
|---|---|---|
| Digestion and Absorption | Digestive system, enzymes, disorders | 2-3 |
| Breathing and Exchange of Gases | Respiratory system, gas exchange, disorders | 2-3 |
| Body Fluids and Circulation | Blood, heart, circulation, disorders | 3-4 |
| Excretory Products and Elimination | Nephron, urine formation, disorders | 2-3 |
| Locomotion and Movement | Muscles, skeleton, joints, disorders | 2-3 |
| Neural Control and Coordination | Nervous system, reflex arc, sensory organs | 2-3 |
| Chemical Coordination and Integration | Endocrine glands, hormones, disorders | 3-4 |
Total Expected Questions: 16-23
High-Yield Topics:
| Chapter | Topics | Expected Questions |
|---|---|---|
| Reproduction in Organisms | Asexual and sexual reproduction | 1-2 |
| Sexual Reproduction in Flowering Plants | Flower structure, pollination, fertilization | 3-4 |
| Human Reproduction | Male and female reproductive systems, gametogenesis | 3-4 |
| Reproductive Health | Birth control, STDs, infertility | 2-3 |
Total Expected Questions: 9-13
| Chapter | Topics | Expected Questions |
|---|---|---|
| Principles of Inheritance and Variation | Mendelian genetics, gene interaction | 4-5 |
| Molecular Basis of Inheritance | DNA structure, replication, transcription, translation | 4-5 |
| Evolution | Origin of life, theories of evolution, human evolution | 2-3 |
Total Expected Questions: 10-13
High-Yield Topics:
| Chapter | Topics | Expected Questions |
|---|---|---|
| Human Health and Disease | Common diseases, immunity, AIDS, cancer | 3-4 |
| Strategies for Enhancement in Food Production | Animal husbandry, plant breeding | 2-3 |
| Microbes in Human Welfare | Microbes in food, medicine, biogas | 2-3 |
Total Expected Questions: 7-10
| Chapter | Topics | Expected Questions |
|---|---|---|
| Biotechnology: Principles and Processes | rDNA technology, tools, vectors | 3-4 |
| Biotechnology and Its Applications | GM crops, gene therapy, transgenic animals | 2-3 |
Total Expected Questions: 5-7
| Chapter | Topics | Expected Questions |
|---|---|---|
| Organisms and Populations | Populations, adaptations | 2-3 |
| Ecosystem | Ecosystem components, productivity, nutrient cycling | 3-4 |
| Biodiversity and Conservation | Biodiversity, conservation strategies | 2-3 |
| Environmental Issues | Pollution, conservation, global warming | 2-3 |
Total Expected Questions: 9-13
High-Yield Topics:
| Rank | Chapter | Questions | Marks |
|---|---|---|---|
| 1 | Human Physiology | 12-15 | 48-60 |
| 2 | Genetics | 8-10 | 32-40 |
| 3 | Plant Physiology | 8-10 | 32-40 |
| 4 | Ecology | 8-10 | 32-40 |
| 5 | Reproduction | 6-8 | 24-32 |
| Aspect | Status |
|---|---|
| Syllabus Reduction | No reduction |
| Exam Mode | Offline (OMR-based) |
| Difficulty Level | Moderate to High |
| Question Source | Primarily NCERT |
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Last updated: January 2026. Based on NTA NEET 2026 Information Bulletin.
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How many hours should I study Biology daily for NEET?
For NEET Biology, aim for 3-4 hours of focused study daily. Quality matters more than quantity!
Is NCERT enough for Biology in NEET?
Yes! NCERT covers 95% of NEET Biology questions. Master it completely before any reference book.
Which chapters have maximum weightage?
Human Physiology (20%), Genetics (18%), and Ecology (12%) are the highest-scoring areas.
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