Updated 19 Oct 2026

NEET weightage: top 30 high-yield chapters

Biology carries 50% of the NEET UG paper (360 / 720 marks across Botany and Zoology), while Physics and Chemistry carry 180 marks each. Below are the 30 highest-weight NEET chapters measured across 2,906 tagged past-paper questions.

How it is computed: a chapter's tagged NEET PYQs divided by all tagged NEET PYQs of its subject in the bank, times 100, with repeated questions counted once. Denominators: Physics 758, Chemistry 707, Botany 793, Zoology 648. The bank labels the set NEET 2013–2026 but does not store each question's year. Download the CSV. Updated 19 Oct 2026.

Full 94-chapter NEET weightage table Try NEET OMR sheet demo

#	Chapter	Subject	Weight (/100 of subject)	Exam importance (★)	PYQs
1	Biotechnology: Principles and Processes	Zoology	11.0	★★★★★	71
2	Chemical Bonding and Molecular Structure	Chemistry	9.2	★★★★★	65
3	Molecular Basis of Inheritance	Botany	9.1	★★★★★	72
4	Animal Kingdom	Zoology	8.5	★★★★★	55
5	Biomolecules	Zoology	8.3	★★★★★	54
6	Cell: The Unit of Life	Botany	8.1	★★★★★	64
7	Morphology of Flowering Plants	Botany	7.9	★★★★★	63
8	Principles of Inheritance and Variation	Botany	7.9	★★★★★	63
9	Human Reproduction	Zoology	7.9	★★★★★	51
10	Evolution	Zoology	7.6	★★★★★	49
11	Current Electricity	Physics	7.1	★★★★★	54
12	Biological Classification	Botany	7.1	★★★★★	56
13	Human Health and Disease	Zoology	6.9	★★★★☆	45
14	Coordination Compounds	Chemistry	6.5	★★★★☆	46
15	Cell Cycle and Cell Division	Botany	6.4	★★★★☆	51
16	Sexual Reproduction in Flowering plants	Botany	6.4	★★★★☆	51
17	Body Fluids and Circulation	Zoology	6.0	★★★★☆	39
18	Hydrocarbons	Chemistry	5.9	★★★★☆	42
19	Solutions	Chemistry	5.7	★★★★☆	40
20	Chemical Coordination and Integration	Zoology	5.6	★★★★☆	36
21	Semiconductor Electronics : Materials, Devices and Simple Circuits	Physics	5.5	★★★★☆	42
22	Dual Nature of Radiation and Matter	Physics	5.3	★★★★☆	40
23	System of Particles and Rotational Motion	Physics	5.3	★★★★☆	40
24	Biodiversity and Its Conservation	Botany	5.3	★★★★☆	42
25	Breathing and Exchange of Gases	Zoology	5.2	★★★★☆	34
26	Reproductive Health	Zoology	5.2	★★★★☆	34
27	Ray Optics and Optical Instruments	Physics	5.1	★★★★☆	39
28	Locomotion and Movement	Zoology	5.1	★★★★☆	33
29	Alcohols, Phenols, and Ethers	Chemistry	5.0	★★★★☆	35
30	Ecosystem	Botany	4.7	★★★★☆	37