NEET UG · 204 topics · 2017–2026
NEET topics: what comes, and how often
Every topic NEET asked in ten years, from 1,875 topic-tagged questions. See which topics come every paper, which come in waves, and which have gone quiet.
- Topics asked
- 204
- across 94 chapters
- In all ten papers
- 19
- 46 in nine or more
- Top 25 topics
- 27%
- of topic-tagged questions
Key findings
- 01
Half of all topic-tagged questions come from just 56 of 204 topics; the top 25 carry 27%.
- 02
19 topics were asked in all ten papers and 46 in at least nine. “Every year” topics hold 88% of the questions.
- 03
The fastest riser is Frog Morphology: 0.1 questions a paper up to 2023, 2.0 since 2024.
- 04
10 topics come in waves and are due again; 12 have gone quiet for five papers or more.
- 05
Inside these topics NEET has never asked 83% of the ideas in the syllabus. The topic repeats; the idea usually does not.
Repeat patterns
Six ways a topic comes back
We sorted each topic by its rhythm across the ten papers. The chance shown is the historical rate for topics with that rhythm.
Every year
In most papers. The backbone of the exam.
- Topics
- 138
- Questions
- 88%
- Chance next
- 65%
Most years
Asked in several papers, with gaps between.
- Topics
- 25
- Questions
- 6%
- Chance next
- 46%
Due again
Comes in waves and has been away for a while.
- Topics
- 14
- Questions
- 4%
- Chance next
- 36%
New since 2024
First asked in 2024 or later.
- Topics
- 6
- Questions
- 0%
- Chance next
- 37%
Now and then
Asked once or twice, no clear rhythm.
- Topics
- 9
- Questions
- 1%
- Chance next
- 20%
Gone quiet
Not asked for five papers or more.
- Topics
- 12
- Questions
- 1%
- Chance next
- 17%
Topic-wise weightage
Every topic, every year
Filter by subject, unit or pattern. Each strip is the ten papers from 2017 to 2026; darker means more questions.
- Biomolecule Structure3.4Biomolecules · Every year93%10/10 yrs · 33 Q · last 2026
- Endocrine Glands and Hormone Action2.7Chemical Coordination and Integration · Every year93%10/10 yrs · 24 Q · last 2026
- Aldehydes, Ketones and Carboxylic Acids2.5Aldehydes, Ketones and Carboxylic Acids · Every year93%9/10 yrs · 22 Q · last 2026
- Ohm's Law and Resistance2.5Current Electricity · Every year93%10/10 yrs · 28 Q · last 2026
- Flower Structure2.3Morphology of Flowering Plants · Every year84%9/10 yrs · 19 Q · last 2026
- d- and f-Block Elements2.2The d- and f-Block Elements · Every year84%10/10 yrs · 21 Q · last 2026
- Photoelectric Effect2.1Dual Nature of Radiation and Matter · Every year84%10/10 yrs · 20 Q · last 2026
- Cloning Vectors2.1Biotechnology: Principles and Processes · Every year84%9/10 yrs · 18 Q · last 2026
- Chemical Kinetics2.0Chemical Kinetics · Every year84%10/10 yrs · 21 Q · last 2026
- Rotational Motion2.0System of Particles and Rotational Motion · Every year84%10/10 yrs · 21 Q · last 2026
- Amines and Diazonium Salts2.0Amines · Every year84%10/10 yrs · 18 Q · last 2026
- Units and Dimensions1.9Units and Measurements · Every year84%10/10 yrs · 20 Q · last 2026
- Immunity and Lymphoid Organs1.9Human Health and Disease · Every year84%9/10 yrs · 17 Q · last 2026
- p-Block Elements (Groups 15-18)1.9The p-Block Elements (Class 12) · Every year84%10/10 yrs · 23 Q · last 2026
- Restriction Enzymes1.9Biotechnology: Principles and Processes · Every year84%9/10 yrs · 22 Q · last 2026
- Gravitation1.9Gravitation · Every year84%10/10 yrs · 19 Q · last 2026
- Electromagnetic Waves1.9Electromagnetic Waves · Every year84%10/10 yrs · 18 Q · last 2026
- Plant Tissues and Anatomy1.8Anatomy of Flowering Plants · Every year84%9/10 yrs · 25 Q · last 2025
- Mitotic Division1.8Cell Cycle and Cell Division · Every year84%10/10 yrs · 21 Q · last 2026
- Mendelian Inheritance1.8Principles of Inheritance and Variation · Every year84%9/10 yrs · 20 Q · last 2026
- Energy Flow in Ecosystem1.8Ecosystem · Every year84%8/10 yrs · 15 Q · last 2026
- Human Diseases, Cancer and Drug Abuse1.8Human Health and Disease · Every year84%8/10 yrs · 16 Q · last 2026
- Animal Kingdom: Basis of Classification and Non-chordates1.8Animal Kingdom · Every year84%9/10 yrs · 18 Q · last 2026
- Solutions and Colligative Properties1.7Solutions · Every year84%8/10 yrs · 16 Q · last 2026
- Chordate Classes1.7Animal Kingdom · Every year84%9/10 yrs · 16 Q · last 2026
Right: weighted estimate of questions a paper (model), and the historical chance of at least one.
| Topic | Ten years | Years asked | Last asked | Ideas asked | Trend | Chance next | Weighted est. |
|---|---|---|---|---|---|---|---|
| Biomolecule StructureBiology · BiomoleculesEvery year | 10/10 | 2026 | 19 / 79 | +1.0 | 93% | 3.4 | |
| Endocrine Glands and Hormone ActionBiology · Chemical Coordination and IntegrationEvery year | 10/10 | 2026 | 0 / 10 | +1.8 | 93% | 2.7 | |
| Aldehydes, Ketones and Carboxylic AcidsChemistry · Aldehydes, Ketones and Carboxylic AcidsEvery year | 9/10 | 2026 | 0 / 18 | +1.2 | 93% | 2.5 | |
| Ohm's Law and ResistancePhysics · Current ElectricityEvery year | 10/10 | 2026 | 17 / 85 | -0.7 | 93% | 2.5 | |
| Flower StructureBiology · Morphology of Flowering PlantsEvery year | 9/10 | 2026 | 13 / 67 | +1.5 | 84% | 2.3 | |
| d- and f-Block ElementsChemistry · The d- and f-Block ElementsEvery year | 10/10 | 2026 | 0 / 15 | +0.8 | 84% | 2.2 | |
| Photoelectric EffectPhysics · Dual Nature of Radiation and MatterEvery year | 10/10 | 2026 | 11 / 88 | +0.5 | 84% | 2.1 | |
| Cloning VectorsBiology · Biotechnology: Principles and ProcessesEvery year | 9/10 | 2026 | 10 / 85 | +1.6 | 84% | 2.1 | |
| Chemical KineticsChemistry · Chemical KineticsEvery year | 10/10 | 2026 | 14 / 65 | +0.3 | 84% | 2.0 | |
| Rotational MotionPhysics · System of Particles and Rotational MotionEvery year | 10/10 | 2026 | 0 / 13 | +0.3 | 84% | 2.0 | |
| Amines and Diazonium SaltsChemistry · AminesEvery year | 10/10 | 2026 | 16 / 77 | +0.8 | 84% | 2.0 | |
| Units and DimensionsPhysics · Units and MeasurementsEvery year | 10/10 | 2026 | 16 / 86 | 0.0 | 84% | 1.9 | |
| Immunity and Lymphoid OrgansBiology · Human Health and DiseaseEvery year | 9/10 | 2026 | 0 / 11 | +1.3 | 84% | 1.9 | |
| p-Block Elements (Groups 15-18)Chemistry · The p-Block Elements (Class 12)Every year | 10/10 | 2026 | 0 / 15 | -0.9 | 84% | 1.9 | |
| Restriction EnzymesBiology · Biotechnology: Principles and ProcessesEvery year | 9/10 | 2026 | 14 / 76 | -1.2 | 84% | 1.9 | |
| GravitationPhysics · GravitationEvery year | 10/10 | 2026 | 0 / 10 | 0.2 | 84% | 1.9 | |
| Electromagnetic WavesPhysics · Electromagnetic WavesEvery year | 10/10 | 2026 | 0 / 8 | +0.3 | 84% | 1.9 | |
| Plant Tissues and AnatomyBiology · Anatomy of Flowering PlantsEvery year | 9/10 | 2025 | 0 / 19 | -1.6 | 84% | 1.8 | |
| Mitotic DivisionBiology · Cell Cycle and Cell DivisionEvery year | 10/10 | 2026 | 9 / 77 | -1.0 | 84% | 1.8 | |
| Mendelian InheritanceBiology · Principles of Inheritance and VariationEvery year | 9/10 | 2026 | 15 / 82 | +0.4 | 84% | 1.8 | |
| Energy Flow in EcosystemBiology · EcosystemEvery year | 8/10 | 2026 | 11 / 82 | +0.8 | 84% | 1.8 | |
| Human Diseases, Cancer and Drug AbuseBiology · Human Health and DiseaseEvery year | 8/10 | 2026 | 0 / 7 | +1.0 | 84% | 1.8 | |
| Animal Kingdom: Basis of Classification and Non-chordatesBiology · Animal KingdomEvery year | 9/10 | 2026 | 0 / 12 | 0.3 | 84% | 1.8 | |
| Solutions and Colligative PropertiesChemistry · SolutionsEvery year | 8/10 | 2026 | 0 / 10 | +1.0 | 84% | 1.7 | |
| Chordate ClassesBiology · Animal KingdomEvery year | 9/10 | 2026 | 0 / 9 | +0.6 | 84% | 1.7 |
Every year
The topics in nearly every paper
125 topics in the syllabus come in most papers. These are the twelve with the highest weighted estimate.
- Biomolecule Structure~3.4 Q · 10/10
Biomolecules
- Endocrine Glands and Hormone Action~2.7 Q · 10/10
Chemical Coordination and Integration
- Aldehydes, Ketones and Carboxylic Acids~2.5 Q · 9/10
Aldehydes, Ketones and Carboxylic Acids
- Ohm's Law and Resistance~2.5 Q · 10/10
Current Electricity
- Flower Structure~2.3 Q · 9/10
Morphology of Flowering Plants
- d- and f-Block Elements~2.2 Q · 10/10
The d- and f-Block Elements
- Photoelectric Effect~2.1 Q · 10/10
Dual Nature of Radiation and Matter
- Cloning Vectors~2.1 Q · 9/10
Biotechnology: Principles and Processes
- Chemical Kinetics~2.0 Q · 10/10
Chemical Kinetics
- Rotational Motion~2.0 Q · 10/10
System of Particles and Rotational Motion
- Amines and Diazonium Salts~2.0 Q · 10/10
Amines
- Units and Dimensions~1.9 Q · 10/10
Units and Measurements
Due again 10
Topics that come in waves and have been away for a while.
- Bryophytes64% · last 2025
Plant Kingdom
- Gene Therapy50% · last 2023
Biotechnology and its Applications
- Oxygen Dissociation Curve50% · last 2024
Breathing and Exchange of Gases
- Linkage and Recombination50% · last 2023
Principles of Inheritance and Variation
- DNA Replication50% · last 2024
Molecular Basis of Inheritance
- Genetically Engineered Insulin50% · last 2025
Biotechnology and its Applications
- Electrocardiogram37% · last 2024
Body Fluids and Circulation
- Nuclear Binding Energy37% · last 2022
Nuclei
- Root Morphology30% · last 2020
Morphology of Flowering Plants
- Excretory Disorders30% · last 2020
Excretory Products and their Elimination
Gone quiet 12
Not asked for five papers or more.
- Doppler Effectlast 2017 · 1 Q
Waves
- Cell Wall Structurelast 2017 · 1 Q
Cell: The Unit of Life
- Kingdom Protistalast 2018 · 3 Q
Biological Classification
- Spherical Mirrorslast 2018 · 1 Q
Ray Optics and Optical Instruments
- Ecological Pyramidslast 2018 · 1 Q
Ecosystem
- Greenhouse Effectlast 2019 · 3 Q
Environmental Issues · Dropped
- Binomial Nomenclaturelast 2019 · 1 Q
The Living World
- Vector Algebralast 2019 · 1 Q
Motion in a Plane
- Structure of Earlast 2020 · 1 Q
Neural Control and Coordination
- Calorimetrylast 2021 · 2 Q
Thermal Properties of Matter
- Photoperiodismlast 2021 · 2 Q
Plant Growth and Development
- Floral Formulae and Plant Familieslast 2021 · 1 Q
Morphology of Flowering Plants
New since 2024 6
Asked for the first time in the last three papers.
- Independent Assortmentfirst 2025
Principles of Inheritance and Variation
- Qualitative Inorganic Analysisfirst 2025
Equilibrium
- Lenz's Lawfirst 2024
Electromagnetic Induction
- Leaf Venation and Phyllotaxyfirst 2026
Morphology of Flowering Plants
- Fluid Mosaic Modelfirst 2025
Cell: The Unit of Life
- Hydrogen Bondingfirst 2024
Chemical Bonding and Molecular Structure
Rising fastest 6
Most extra questions a paper since 2024, against 2017–2023.
- Frog Morphology0.1 → 2.0
Structural Organisation in Animals
- Endocrine Glands and Hormone Action1.8 → 3.6
Chemical Coordination and Integration
- Cloning Vectors1.2 → 2.9
Biotechnology: Principles and Processes
- Flower Structure1.4 → 2.9
Morphology of Flowering Plants
- Immunity and Lymphoid Organs1.3 → 2.6
Human Health and Disease
- Calvin and Hatch-Slack Cycles0.9 → 2.2
Photosynthesis in Higher Plants
Method