NEET Biology Syllabus 2025–26
NEET Biology Exam Snapshot
The NEET Biology syllabus 2026 is the highest-weightage section of the exam, covering 10 units across Botany and Zoology. This syllabus has been finalised by the National Medical Commission through UGMEB as per the official notice dated 22 December 2025. For a complete view across all subjects, you can explore the NEET UG 2026 Syllabus and understand how Biology fits into your overall preparation.
Here's a quick look at Biology's structure in NEET UG 2026.
| Detail | Information |
|---|---|
| Subject | Biology (Botany + Zoology) |
| Total Units | 10 units (Botany: 4, Zoology: 6) |
| Questions | 90 MCQs (45 each for Botany/Zoology) |
| Marks | 360 marks (4 marks per question) |
| Negative Marking | Yes (-1 per wrong answer) |
| High-Weightage Topics | Human Physiology (20%), Genetics & Evolution (18%), Ecology (12%), Plant Physiology (10%), Diversity (10%) |
Biology Syllabus Structure — Botany and Zoology
Biology in NEET UG 2026 is divided into two broad parts. Units 1 to 4 focus on Botany and build your foundation in plant science. Units 5 to 10 move into Zoology, covering human biology, genetics, and ecology, which are often more application-based.
NEET Biology 2026 — Unit-wise Weightage & Priority
Botany-Focused Units (Units 1–4)
| Unit No. | Unit Name | Subject Details | Priority | How to Approach |
|---|---|---|---|---|
| Unit 1 | Diversity in the Living World | Biodiversity, classification, taxonomy | 🔴 High | NCERT line-by-line |
| Unit 2 | Structural Organisation | Morphology, anatomy, tissues | 🟠 Medium | Practice diagrams |
| Unit 3 | Cell Structure and Function | Organelles, biomolecules, division | 🔴 High | Focus on diagrams + processes |
| Unit 4 | Plant Physiology | Photosynthesis, respiration | 🔴 High | Revise cycles & concepts |
Zoology-Focused Units (Units 5–10)
| Unit No. | Unit Name | Subject Details | Priority | How to Approach |
|---|---|---|---|---|
| Unit 5 | Human Physiology | Body systems | 🔴 High | Revise diagrams regularly |
| Unit 6 | Reproduction | Plant + human reproduction | 🟠 Medium | Focus on diagrams |
| Unit 7 | Genetics and Evolution | Inheritance, DNA | 🔴 High | Practice numericals |
| Unit 8 | Biology and Human Welfare | Diseases, immunity | 🟡 Low | NCERT-based |
| Unit 9 | Biotechnology | Genetic engineering | 🟡 Low | Revise concepts |
| Unit 10 | Ecology and Environment | Ecosystems, biodiversity | 🔴 High | Revise examples |
NEET Biology Chapter-wise Weightage
Past trends highlight key focus areas (approximate % of questions).
| Chapter/Unit | Expected Weightage |
|---|---|
| Human Physiology | 20% |
| Genetics & Evolution | 18% |
| Ecology & Environment | 12% |
| Cell Structure & Function | 12% |
| Diversity in Living World | 10% |
| Plant Physiology | 10% |
Giraffe Learning Expert Tips for NEET Biology
- NCERT Biology (Class 11 and 12) is your main source. Read it line by line.
- Diagrams are critical. Practice drawing regularly. Refer effective Biology notes.
- Revise multiple times. Follow NEET preparation tips.
How Biology Fits into Your NEET Preparation
To balance your preparation, explore NEET Physics Syllabus 2026 and NEET Chemistry Syllabus 2026. For better planning, refer to chapter-wise weightage.
Start Preparing with the Right Support
Giraffe Learning offers NEET coaching in Bangalore with dedicated Biology faculty.
FAQs
-
How many units are in the NEET 2026 Biology exam?
There are 10 units covering Botany and Zoology.
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Is NCERT enough for NEET Biology?
Yes, NCERT Biology is the most important resource.
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Which Biology unit has the most questions in NEET?
It varies yearly. Refer to chapter-wise weightage.