Analysis of NEET UG 2019–2025 question papers reveals that Genetics & Evolution and Ecology & Environment together contribute 25–30% of Biology questions. For 2026, NMC's rationalised syllabus retains these chapters fully — making them the highest-priority topics for NEET aspirants.
Why it matters for exams
Biology accounts for 360 out of 720 marks in NEET UG. With the section B optional format, strategic chapter selection is critical. Genetics alone (Mendelian + Molecular) has contributed 8–12 questions per year over the past 5 years.
Key facts for revision
- 01Genetics & Evolution: Contributes 12–14% of Biology NEET marks — Mendelian genetics, DNA replication, Mutations.
- 02Ecology: Contributes 10–12% — Ecosystems, Biodiversity, Environmental issues are guaranteed questions.
- 03Human Physiology: 20+ marks every year — Digestion, Circulation, Excretion, Neural control.
- 04Plant Kingdom & Plant Physiology: 6–8 marks — Photosynthesis, Respiration, Plant growth.
- 05Reproduction (Plants & Humans): 8–10 marks — Guaranteed questions from NCERT diagrams.
- 06Section B strategy: Attempt questions from your strongest chapter first for accuracy.
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