This page ranks all 16 NEET Zoology chapters by how many questions they produced across NEET 2020–2026 and Re-NEET 2026 — 388 questions in total. The five highest-weightage chapters (Biotechnology - Principles and Processes, Animal Kingdom, Biomolecules, Human Reproduction and Structural Organisation in Animals (Animal Tissues)) account for 185 of them, 48% of the subject.
By difficulty, 35% of the tagged Zoology questions were easy, 52% medium and 13% hard. Open any chapter for its topic-wise breakdown, the papers each topic appeared in, and the topics that have been asked most recently.
| # | Chapter | Qs | Share | Difficulty (E · M · H) |
|---|---|---|---|---|
| 1 | Biotechnology - Principles and Processes | 46 | 11.9% | 17 · 21 · 8 |
| 2 | Animal Kingdom | 38 | 9.8% | 16 · 18 · 4 |
| 3 | Biomolecules | 38 | 9.8% | 14 · 17 · 7 |
| 4 | Human Reproduction | 32 | 8.2% | 8 · 17 · 7 |
| 5 | Structural Organisation in Animals (Animal Tissues) | 31 | 8% | 14 · 14 · 3 |
| 6 | Biotechnology and its Applications | 27 | 7% | 9 · 17 · 1 |
| 7 | Evolution | 25 | 6.4% | 12 · 11 · 2 |
| 8 | Human Health and Disease | 25 | 6.4% | 7 · 15 · 3 |
| 9 | Locomotion and Movement | 24 | 6.2% | 5 · 17 · 2 |
| 10 | Reproductive Health | 23 | 5.9% | 9 · 13 · 1 |
| 11 | Body Fluids and Circulation | 18 | 4.6% | 4 · 12 · 2 |
| 12 | Chemical Coordination and Integration | 15 | 3.9% | 8 · 5 · 2 |
| 13 | Excretory Products and their Elimination | 15 | 3.9% | 4 · 7 · 4 |
| 14 | Breathing and Exchange of Gases | 13 | 3.4% | 2 · 9 · 2 |
| 15 | Digestion and Absorption | 10 | 2.6% | 6 · 4 · 0 |
| 16 | Neural Control and Coordination | 8 | 2.1% | 2 · 4 · 2 |
By past weightage, Biotechnology - Principles and Processes leads with 46 questions (11.9%). The top five are Biotechnology - Principles and Processes (46), Animal Kingdom (38), Biomolecules (38), Human Reproduction (32) and Structural Organisation in Animals (Animal Tissues) (31).
NEET 2020: 45; NEET 2021: 63; NEET 2022: 52; NEET 2023: 54; NEET 2024: 50; NEET 2025: 41; NEET 2026: 41; Re-NEET 2026: 42. These are the questions Edurack has tagged to NCERT chapters, so they can differ slightly from the printed paper.
Among chapters with at least 8 questions, the highest share of easy questions was in Digestion and Absorption (60% easy), Chemical Coordination and Integration (53% easy) and Evolution (48% easy).
Among chapters with at least 8 questions, the highest share of hard questions was in Excretory Products and their Elimination (27% hard), Neural Control and Coordination (25% hard) and Human Reproduction (22% hard).
Counts come from Edurack's tagged set of NEET papers 2020–2026 (including Re-NEET 2026), mapped to NCERT chapters and topics. Use them as a trend guide — past frequency doesn't guarantee what a future paper will ask.
Counts come from Edurack's tagged set of NEET papers 2020–2026 (including Re-NEET 2026), mapped to NCERT chapters and topics. Use them as a trend guide — past frequency doesn't guarantee what a future paper will ask.