Updated NEET Biology Syllabus 2026: Chapter-Wise Topics, Weightage & Deleted
Siddharth Pandey10 Feb, 2026
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Updated NEET Biology Syllabus: With the NEET UG 2026 registration dates officially announced from 8 February to 8 March 2026 and the exam scheduled for 3 May 2026, aspirants must now align their preparation with the latest academic requirements. The Updated NEET Biology Syllabus 2026 reflects the evolving focus of the exam and continues the structural changes introduced in 2024.
It covers key areas such as Human Physiology, Genetics and Evolution, Plant Physiology, Ecology and Environment, and more. Since a few topics beyond the current NCERT textbooks are included, candidates should carefully review the revised syllabus and strengthen their concepts using reliable NEET Biology notes and practice resources.
NEET aspirants can compare last year's and current year's NEET Syllabus to get clarity about their doubts. According to the experts, some topics are removed in the biology section with the addition of new and more relevant topics in the medical domain.
Updated NEET Biology Syllabus
In the NEET exam 2026, biology remains the dominating subject and requires a strategic approach to score well. Questions in the biology section of NEET are generally direct and concept-oriented, offering the opportunity to secure a commendable score. Thus, having a strong command of the Biology section can enhance the overall performance of the NEET aspirants.
According to NEET Biology syllabus 2026, candidates can prioritise topics based on their importance and difficulty level. The syllabus had undergone significant revisions in 2024, with certain topics being added and others removed. Although no new changes have been introduced for 2026, it is important for students to keep up with the updated structure. Referring to the NEET biology chapter-wise weightage and practicing NEET biology MCQs can help aspirants structure their preparation effectively and focus on high-scoring areas.
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Revised NEET Biology Syllabus
Candidates aspiring to ace the upcoming NEET examinations must be well acquainted with the revised NEET Biology Syllabus to gear up their exam preparation effectively. Biology is a vital section in the NEET exam which plays a crucial role in the overall success of the aspirants. It must be noted that the National Medical Counselling changed the NEET Biology Syllabus with slight revisions, like omitting some topics and introducing new topics.
Later, the National Testing Agency finalized the updated syllabus for Biology. Candidates must go through this article to find the topic-wise coverage of the entire syllabus to incorporate their exam preparation.
Updated NEET Biology Syllabus with Chapter-Wise Weightage
This table provides a clear breakdown of the weightage assigned to each topic from Class 11 and Class 12 in the NEET Biology Syllabus.
| Updated NEET Biology Syllabus with Chapter-Wise Weightage (Class 11) | ||
|---|---|---|
| S. No. | Class 11 Topics | Weightage |
| 1. | Diversity of Living Organisms Change | 14% |
| 2. | Structural Organization in Animals and Plants | 5% |
| 3. | Cell Structure and Function | 9% |
| 4. | Plant Physiology | 6% |
| 5. | Human Physiology | 20% |
| Updated NEET Biology Syllabus 2025-26 with Chapter-Wise Weightage (Class 12) | ||
|---|---|---|
| S. No. | Class 12 Topics | Weightage |
| 1. | Reproduction | 9% |
| 2. | Genetics and Evolution | 18% |
| 3. | Biology and Human Welfare | 9% |
| 4. | Biotechnology and Its Applications | 4% |
| 5. | Ecology and Environment | 6% |
List of Deleted Topics from NEET UG Biology Syllabus
Below is the list of topics removed from the NEET UG Biology Syllabus. Candidates can also access the NEET Syllabus PDF for reference.
Excluded Topics:
- Taxonomic Aid
- Angiosperm
- Secondary Growth (Class 11)
- Transport in Plants except Xylem and Phloem (Class 11)
- Mineral Nutrition (Class 11)
- Vernalization and Seed Dormancy (Class 11)
- Sense Organs (Class 11)
- Digestion and Absorption (Class 11)
- Reproduction in Organisms (Class 12)
- Strategies for Enhancement in Food Production (Class 12)
- Succession (Class 12)
- Environmental Issues (Class 12)
Updated NEET Biology Syllabus vs NCERT Biology
The following list outlines the newly incorporated topics in the NEET UG Biology Syllabus:
- Family (Malvaceae, Cruciferae, Leguminoceae, Compositae, Gramineae)
- Insect (Frog)
It is worth noting that while some of these topics are not included in the new NCERT Biology Book, students are advised to study them from the old NCERT textbooks and seek assistance from external resources and their teachers.
It is important to highlight that no entire chapter has been removed from the NEET Biology syllabus 2026. Only specific Class 11 and 12 Biology syllabus topics have been excluded.
Please note that "insect" in the second topic is a typo in the revised Biology NCERT. The correct word should be "frog".
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