Every GAT-B (Graduate Aptitude Test – Biotechnology) previous year paper on Lesson Basket, typed out in full with NTA’s final answer key. 4 papers (2021 to 2024), 640 questions, free and without login.
4papers, GAT-B 2021 to 2024
640questions with answers
34diagrams, as set in the exam
2sections, every question tagged
Each paper below has its own page with all 160 questions in the order they were set: Section A (60 questions at 10+2 level) and Section B (100 graduate-level questions, of which you answer 60). Every question is tagged with its subject and topic and has a Show answer button.
GAT-B question papers with answer keys
| Paper | Questions | Dropped in the final key |
|---|---|---|
| GAT-B 2024 | 160 | None |
| GAT-B 2023 | 160 | Q12 (marks to all) |
| GAT-B 2022 | 160 | Q24, Q26, Q34 (marks to all) |
| GAT-B 2021 | 160 | Q147 (marks to all) |
Previous year paperGAT-B 2024 question paperAll 160 questions with NTA’s final answer key.Open the paper →Previous year paperGAT-B 2023 question paperAll 160 questions with NTA’s final answer key.Open the paper →Previous year paperGAT-B 2022 question paperAll 160 questions with NTA’s final answer key.Open the paper →Previous year paperGAT-B 2021 question paperAll 160 questions with NTA’s final answer key.Open the paper →
About the papers and keysEvery paper here is NTA’s own question paper from its archive of previous years’ papers, and every answer is from NTA’s final answer key. NTA has not published the GAT-B 2025 or 2026 question papers; we will add them if it does.
Take them as timed testsAll 4 papers are also a free GAT-B previous year papers course in live exam mode: the real timer, GAT-B marking and an instant score.
Want full-length practice?The GAT-B Full Test Series gives you full-length mocks on the NTA pattern, with 60 Section A and 100 Section B questions and GAT-B marking. See the GAT-B Full Test Series.
Which topics these papers tested
We tagged all 640 questions with their subject and topic. Section A splits evenly across Physics, Chemistry, Mathematics and Biology; Section B is almost all biology and biotechnology. The charts below break down each subject across the papers.
| Section | Subject | Questions | Most-tested topics (questions) |
|---|---|---|---|
| A | Physics | 60 | Mechanics (20), Electricity & Magnetism (13), Optics (7) |
| A | Chemistry | 52 | Functional Groups & Reactivity (12), Solutions & Stoichiometry (11), Chemical Kinetics (6) |
| A | Mathematics | 60 | Arithmetic (27), Probability & Statistics (14), Geometry & Mensuration (8) |
| A | Biology | 68 | Biomolecules (17), Genetics (13), Molecular Biology (8) |
| B | Biology and biotechnology | 400 | Biotechnology (70), Molecular Biology (56), Biomolecules (54) |
| Total | 640 |
Section A: Physics
GAT-B 2021–2024, Section A Physics: questions by topic
60 Physics questions from 4 papers, tagged by Lesson Basket.
Topic tags: Lesson Basket. For Section B across five papers, see our GAT-B weightage analysis.
Section A: Chemistry
GAT-B 2021–2024, Section A Chemistry: questions by topic
52 Chemistry questions from 4 papers, tagged by Lesson Basket.
Topic tags: Lesson Basket. For Section B across five papers, see our GAT-B weightage analysis.
Section A: Mathematics
GAT-B 2021–2024, Section A Mathematics: questions by topic
60 Mathematics questions from 4 papers, tagged by Lesson Basket.
Topic tags: Lesson Basket. For Section B across five papers, see our GAT-B weightage analysis.
Section A: Biology
GAT-B 2021–2024, Section A Biology: questions by unit
68 Biology questions from 4 papers, tagged by Lesson Basket.
Topic tags: Lesson Basket. For Section B across five papers, see our GAT-B weightage analysis.
Section B: Biology and biotechnology
GAT-B 2021–2024, Section B: questions by unit
400 questions from 4 papers, tagged by Lesson Basket.
Topic tags: Lesson Basket. For Section B across five papers, see our GAT-B weightage analysis.
Exam pattern in every paper
| Section | Questions | Marks each | Wrong answer | Max marks |
|---|---|---|---|---|
| A: 10+2 level (Physics, Chemistry, Mathematics, Biology) | 60, all compulsory | 1 | −0.5 | 60 |
| B: graduate level (biology and biotechnology) | 100, answer any 60 | 3 | −1 | 180 |
| Total you answer | 120 | 240 |
The exam lasts 3 hours. If you answer more than 60 Section B questions, only your first 60 answers are counted.
How to use previous year papers
- Start with the most recent paperIt reflects the current style best. Attempt it in one 3-hour sitting.
- Score it the GAT-B waySection A: +1 and −0.5. Section B: +3 and −1, counting only your first 60 answers.
- List your mistakes by topicTopics where you lose marks in more than one paper are where to revise first.
- Do another year a week laterCompare your topic-wise mistakes once you have revised your weak topics.
Keep going
Test seriesGAT-B Full Test SeriesFull-length mocks on the NTA pattern: Section A and Section B, with GAT-B marking.See the test series →Exam modePrevious year papers as timed testsAll 4 papers with the real timer and GAT-B marking.Start practising →Exam guideGAT-B syllabus and exam patternSections, marking and how to prepare.Read the guide →PYQ analysisGAT-B Section B weightageWhich units carry the Section B questions.See the analysis →
Source: GAT-B question papers and final answer keys published by the National Testing Agency (NTA). Question text is reproduced for practice; any transcription error is ours, and the official documents are the authority.
Practise on the Lesson Basket appEvery previous year paper in real exam mode with a timer, 130+ animated concept videos and full mock tests – free to start.
