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NEET Biology Chapter-Wise Weightage 2027 - Class 11 & 12 Biology Chapter-wise Weightage
The NEET Biology chapter-wise weightage for 2027 helps students to know which chapters and topics have been asked more often in previous NEET question papers. Biology holds 360 marks out of 720 marks. Thus, it constitutes the largest section of the NEET UG exam. A proper knowledge of the chapter-wise trend will help students in making an efficient study schedule by giving priority to topics that matter.
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 Easy to Score in NEET?
- Common Mistakes to Avoid While Preparing Biology for NEET 2027
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The NEET chapter-wise weightage is derived after analysing the question papers of the previous years. But it should be noted here that the NTA does not release any official NEET chapter-wise weightage. Hence, the information shared above must only be considered as a preparation strategy and not the predicted question paper for NEET 2027. The candidates are advised to cover the entire syllabus and revise NCERT books.
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 |
NEET Biology Chapter-wise Weightage Trend 2021–2026
A six-year study of NEET Biology question papers has come up with chapters which have remained constant in importance and those which have seen changes in the form of question frequency.
The chapter Cell: The Unit of Life had an increase in 2026, with 8 questions coming in the analysis.
Biotechnology: Principles and Processes has always been an important chapter.
Molecular Basis of Inheritance saw many questions before but not in 2026.
Human Health and Disease & Human Reproduction have been important Class 12 chapters.
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Try NowImportance 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 Easy to Score in NEET?
Biology can be considered a scoring subject when the aspirants are well aware of the NCERT concepts and do constant revisions. However, there is a possibility that the difficulty level and type of questions asked might differ in various NEET exams.
Aspirants must aim for accurate preparation of NCERT concepts, frequent revisions, and practice MCQs. The NEET Biology chapter-wise weightage 2027 can provide guidance, but it cannot ensure the exact number of questions coming from any particular chapter.
Common Mistakes to Avoid While Preparing Biology for NEET 2027
Avoiding these frequently made mistakes will definitely help candidates prepare better for their exams and utilise their time for studying Biology well.
Studying only the high-weightage chapters
Ignoring diagrams and tables from NCERT books
Just memorising the facts without knowing the concepts behind them
No practice of past year questions
Neglecting the chapters with few numbers of questions in past years
Not starting revision till the last few weeks
Not analysing their wrong answers
Using too many books together for studying
Depending only on predicted chapter-wise marks
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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