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NEET Biology Chapter-Wise Weightage 2026 by NTA - Class 11 & 12 Biology Chapter-wise Weightage
Chapter-wise weightage of NEET Biology 2027 is the best preparation resource for the NEET 2027. Biology holds 50% weightage of the entire NEET score. There are 90 questions from the Biology section, covering both Class 11 and 12, Botany, and Zoology. Therefore, having information regarding the topic-wise and class-wise weightage of the topics would be helpful for determining high-scoring biology topics for NEET 2027 preparation.
Live | Jul 19, 2026 | 1:10 AM IST
This Story also Contains
- NEET 2027 Class 11 Chapter-wise Weightage for Biology
- NEET 2027 Class 12 Chapter-wise Weightage for Biology
- Importance of NEET Biology Chapter-Wise Weightage 2027
- Most Important Biology Chapters for NEET 2027
- Is Biology Tough in NEET?
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On analysing the NEET biology previous year's questions, it has been found that the weightage of Class 12 Biology is 55-60%, whereas the weightage of Class 11 Biology is 40-45%. This knowledge of the NEET chapter-wise weightage enables students to prepare in a strategic manner. More attention must be paid to the biology high-weightage chapters such as Genetics, Physiology, Ecology, and Biotechnology.
NEET 2027 Class 11 Chapter-wise Weightage for Biology
As far as the chapter-wise weightage in NEET 2027 Biology is concerned, topics such as cell structure, plant physiology, human physiology, and biological classification from Class 11 have become an important source of NEET exam questions. Moreover, these topics form the base of many topics of Class 12 too. According to the NEET Biology chapter weightage 2027, the core topics of Class 11 have become part of important NEET questions. This table presents NEET chapter-wise weightage for Class 11 Biology from last year's exam analysis.
Chapter | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
4 | 1 | 3 | 5 | 3 | 4 | |
3 | 3 | 3 | 4 | 2 | 0 | |
1 | 2 | 2 | 2 | 1 | 4 | |
5 | 6 | 6 | 5 | 0 | 3 | |
3 | 3 | 2 | 4 | 3 | 8 | |
3 | 3 | 3 | 5 | 6 | 2 | |
5 | 4 | 5 | 2 | 3 | 1 | |
2 | 2 | 3 | 3 | 2 | 5 | |
2 | 2 | 0 | 2 | 1 | 3 | |
1 | 1 | 2 | 2 | 0 | 1 | |
5 | 4 | 4 | 6 | 6 | 4 | |
1 | 0 | 2 | 4 | 6 | 3 | |
0 | 3 | 3 | 1 | 6 | 2 | |
0 | 2 | 1 | 2 | 0 | 4 | |
0 | 0 | 2 | 2 | 1 | 1 |
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NEET 2027 Class 12 Chapter-wise Weightage for Biology
NEET 2027 Biology Chapter Wise Weightage for Class 12 brings into light very significant chapters like Genetics & Evolution, Human Health & Diseases, Biotechnology & Reproduction, which usually comprise the questions that are most frequently asked biology concepts. They have several direct concepts and definitions, which are relatively easy to understand and score. Proper attention to NEET do or die Biology chapters will result in better scoring since they are relatively more application-oriented. The following is the chapter-wise weightage table for Class 12 Biology according to the previous years' paper analysis.
Chapter | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
3 | 4 | 2 | 1 | 5 | 2 | |
8 | 6 | 5 | 7 | 4 | 4 | |
8 | 6 | 3 | 2 | 3 | 3 | |
4 | 3 | 4 | 2 | 2 | 3 | |
2 | 4 | 5 | 6 | 5 | 3 | |
3 | 2 | 2 | 4 | 1 | 6 | |
3 | 4 | 2 | 2 | 3 | 1 | |
3 | 4 | 3 | 4 | 7 | 5 | |
4 | 4 | 4 | 4 | 7 | 5 | |
11 | 9 | 7 | 6 | 7 | 2 | |
2 | 2 | 1 | 1 | 4 | 1 | |
4 | 2 | 2 | 2 | 0 | 1 |
Video: NEET Biology Chapterwise Weightage (2021–2025) | Most Important Chapters for NEET
Importance of NEET Biology Chapter-Wise Weightage 2027
Biology is the major subject in NEET 2027 as it constitutes half of the question paper and can add greatly to your overall marks. It is relatively easy compared to physics and chemistry, provided that you know the concepts thoroughly. Knowing the NEET Biology chapter wise weightage 2027 can greatly improve your chances to secure high ranks in the exam. Concentrating on NEET Biology important questions for 330+ marks is a sure-shot way to succeed.
Most Important Biology Chapters for NEET 2027
In order to get more marks in NEET 2027 Biology, you should concentrate on the important biology chapters which have more weightage in Biology. These topics include Human Physiology, Genetics & Evolution, Ecology & Environment, Plant Physiology & Diversity, and Reproduction (Plant & Human).
Chapter | Important Topics | Preparation Tips |
Human Physiology | Digestion, Respiration, Circulation, Excretion, Nervous System, Endocrine Glands | Revise NCERT diagrams and flowcharts. Solve Human Physiology PYQs. |
Genetics and Evolution | Inheritance, Molecular Genetics, DNA Replication, Genetic Disorders, Evolution | Practise genetics numericals and pedigree questions. Solve chapter-wise PYQs. |
Ecology and Environment | Ecosystem, Biodiversity, Environmental Issues, Organisms and Populations | Read NCERT thoroughly. Revise key terms and solve PYQs regularly. |
Plant Physiology & Plant Diversity | Photosynthesis, Respiration, Plant Growth, Plant Kingdom, Morphology, Anatomy, Cell Biology | Revise NCERT diagrams, tables, and important concepts. Practise PYQs. |
Reproduction (Plant & Human) | Human Reproduction, Reproductive Health, Sexual Reproduction in Flowering Plants | Learn NCERT diagrams and important processes. Solve previous years' questions. |
NEET Syllabus: Subjects & Chapters
Select your preferred subject to view the chapters
Is Biology Tough in NEET?
In the NEET exam, Biology is generally considered an easier section compared to Physics and Chemistry, especially if you've thoroughly studied the NCERT textbooks. Most questions are based on these textbooks and require an understanding of concepts and memorising key terms, processes, and diagrams.
Frequently Asked Questions (FAQs)
Q: What is the total marks of NEET Biology?
A:
There will be a total of 90 questions asked from the Biology section of NEET. The total marks for the Biology section is 360 marks.
Q: Where can I download the official NEET Biology weightage PDF?
A:
The NTA (National Testing Agency) releases the official NEET syllabus and weightage details on its website (neet.nta.nic.in). Various educational platforms also provide chapter-wise weightage PDFs.
Q: Which chapters have the highest weightage in NEET Biology 2027?
A:
Chapters like Human Physiology, Genetics & Evolution, Ecology, and Biotechnology have the highest weightage in NEET Biology. These topics require extra focus during preparation.
Q: How can I use NEET Biology weightage to improve my NEET 2027 score?
A:
Focus on high-weightage topics first. Revise NCERT thoroughly, practice previous years' papers, and take mock tests to strengthen weak areas and maximise scores.
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