NEET 2026 Biology: Most Important Chapters to Focus On
Published: 19 August 2026. Biology is 360 marks in NEET — the single most important subject. This guide highlights which chapters to prioritise, based on NEET question patterns.
High priority chapters (historically high question count)
Class 12 Biology
- Genetics and Molecular Biology — DNA, replication, transcription, translation, Mendelian genetics
- Reproduction — human reproductive system, plant reproduction
- Ecology — ecosystem, population, environmental issues
- Biotechnology — recombinant DNA, PCR, gel electrophoresis, applications
- Human Health and Disease — immunity, diseases, drugs
Class 11 Biology
- Cell biology — cell structure, organelles, cell division (mitosis, meiosis)
- Plant physiology — photosynthesis, respiration, mineral nutrition
- Structural organisation in animals and plants
- Biological classification
Study approach
- Read NCERT line-by-line — NEET Biology is very close to NCERT text
- Make short notes of key terms and diagrams
- Do chapter-end exercises and previous NEET questions for each chapter
- Revise diagrams separately — many questions are based on them
See also: NEET preparation tips
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