Every IIT JAM Biotechnology (BT) previous year paper on Lesson Basket, typed out in full with its answer key. 5 papers (2022 to 2026), 300 questions, free and without login.
5papers, JAM 2022 to 2026
300questions with answers
36diagrams, as set in the exam
4subjects tagged by topic
Each paper below has its own page with all 60 questions in the order they were set: Section A (MCQ), Section B (MSQ) and Section C (numerical answer). Every question is tagged with its subject and topic and has a Show answer button.
IIT JAM Biotechnology question papers with answer keys
| Paper | Organised by | Answer key | Changes in the key |
|---|---|---|---|
| IIT JAM BT 2026 | IIT Bombay | Final | None |
| IIT JAM BT 2025 | IIT Delhi | Final | None |
| IIT JAM BT 2024 | IIT Madras | Provisional | None |
| IIT JAM BT 2023 | IIT Guwahati | Official (mirror) | None |
| IIT JAM BT 2022 | IIT Roorkee | Final | Q26 marks to all, Q28 marks to all, Q40: more than one answer accepted, Q45: more than one answer accepted, Q54: more than one answer accepted |
Previous year paperIIT JAM BT 2026 question paperAll 60 questions with the answer key.Open the paper →Previous year paperIIT JAM BT 2025 question paperAll 60 questions with the answer key.Open the paper →Previous year paperIIT JAM BT 2024 question paperAll 60 questions with the answer key.Open the paper →Previous year paperIIT JAM BT 2023 question paperAll 60 questions with the answer key.Open the paper →Previous year paperIIT JAM BT 2022 question paperAll 60 questions with the answer key.Open the paper →
About the answer keysThe 2022, 2025 and 2026 answers are from the organising institutes’ own keys. The JAM 2023 and 2024 sites are offline, so those answers come from surviving copies of the official keys: 2023 from a mirror of IIT Guwahati’s key, 2024 from IIT Madras’s provisional key.
Take them as timed testsAll five papers are also a free IIT JAM BT previous year papers course in live exam mode: the real timer, JAM marking and an instant score.
Want full-length practice?The IIT JAM-BT Full Test Series gives you full-length mocks on the JAM pattern, with MCQ, MSQ and numerical questions and JAM marking. See the IIT JAM-BT Full Test Series.
Which topics these papers tested
We tagged all 300 questions with their subject and topic. Biology carried 207 of them; the charts below break down every subject across the five papers.
| Subject | Questions | Most-tested topics (questions) |
|---|---|---|
| Biology | 207 | Molecular Biology (31), Microbiology (29), Methods in Biology (23) |
| Chemistry | 38 | Atomic Structure & Periodicity (5), Chemical Bonding (5), Thermodynamics & Equilibrium (5) |
| Physics | 27 | Mechanics (9), Electricity & Magnetism (5), Optics (4) |
| Mathematics | 28 | Differential Calculus (7), Probability & Statistics (6), Algebra (5) |
| Total | 300 |
Biology
IIT JAM BT 2022–2026, Biology: questions by unit
207 Biology questions from 5 papers, tagged by Lesson Basket.
Topic tags: Lesson Basket. For Biology across four papers, see our JAM-BT weightage analysis.
Chemistry
IIT JAM BT 2022–2026, Chemistry: questions by topic
38 Chemistry questions from 5 papers, tagged by Lesson Basket.
Topic tags: Lesson Basket. For Biology across four papers, see our JAM-BT weightage analysis.
Physics
IIT JAM BT 2022–2026, Physics: questions by topic
27 Physics questions from 5 papers, tagged by Lesson Basket.
Topic tags: Lesson Basket. For Biology across four papers, see our JAM-BT weightage analysis.
Mathematics
IIT JAM BT 2022–2026, Mathematics: questions by topic
28 Mathematics questions from 5 papers, tagged by Lesson Basket.
Topic tags: Lesson Basket. For Biology across four papers, see our JAM-BT weightage analysis.
Exam pattern in every paper
| Section | Questions | Wrong answer | Max marks |
|---|---|---|---|
| A: MCQ | 30 | −1/3 or −2/3 | 50 |
| B: MSQ | 10 | No negative marking | 20 |
| C: Numerical answer | 20 | No negative marking | 30 |
| Total | 60 | 100 |
The exam lasts 3 hours and all 60 questions are compulsory.
How to use previous year papers
- Start with the most recent paperIt reflects the current style best. Attempt all 60 questions in one 3-hour sitting.
- Score it the JAM wayAdd 1 or 2 marks per correct answer and subtract 1/3 or 2/3 only for wrong MCQs.
- 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 seriesIIT JAM-BT Full Test SeriesFull-length mocks on the JAM pattern: MCQ, MSQ and numerical questions.See the test series →Exam modePrevious year papers as timed testsAll five papers with the real timer and JAM marking.Start practising →Free testFree IIT JAM BT mock test60 questions on the real pattern, timed.Take the test →PYQ analysisJAM-BT Biology weightageWhich Biology topics carry the questions.See the analysis →
Source: IIT JAM Biotechnology (BT) question papers and answer keys published by each year’s organising institute. 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.
