CBSE Class 12 Biology Question Paper: Download PDF
CBSE Class 12 Biology Question PaperCBSE Class 12 Biology Question Paper: CBSE Class 12 Biology Previous Year Question Papers play an important role in helping students prepare effectively for their board examinations and improve their overall scores.
These question papers familiarise students with the exam pattern, question formats, marking scheme, and commonly tested topics. Practising past papers also helps students recognise important chapters and prioritise topics carrying higher weightage during revision.
Solving CBSE Class 12 Biology question papers regularly improves answering speed, accuracy, and time management. Students can also use the solutions to evaluate their performance, identify areas that require improvement, and strengthen their understanding of key concepts before the examination.
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CBSE Class 12 Biology Question Paper 2026: Download PDF
Students can access the CBSE Class 12 Biology Question Paper 2026 for different sets along with their solutions using the download links provided in the table below.
CBSE Class 12 Biology 2026 Question Paper (Set-wise) | Question Paper PDF |
CBSE Class 12 Biology Question Paper 2026 (Set 1 - 57/1/1) | |
CBSE Class 12 Biology Question Paper 2026 (Set 1 - 57/2/1) | |
CBSE Class 12 Biology Question Paper 2026 (Set 1 - 57/3/1) | |
CBSE Class 12 Biology Question Paper 2026 (Set 1 - 57/4/1) | |
CBSE Class 12 Biology Question Paper 2026 (Set 1 - 57/5/1) |
What Is the CBSE Class 12 Biology Exam Pattern and Marks Distribution?
The CBSE Class 12 Biology theory examination carries 70 marks and includes different question types, such as MCQs, short-answer, case-based, and long-answer questions. The section-wise exam pattern and marks distribution are given below:
Section | Type of Question | No. of Questions | Marks Per Question | Total Marks |
A | Multiple-Choice Questions (MCQs)/Assertion-Reasoning | 16 | 1 | 16 |
B | Short Answer Questions | 5 | 2 | 10 |
C | Short Answer Questions | 7 | 3 | 21 |
D | Case-based/Source-based/Passage-based/Integrated Assessment Questions | 2 | 4 | 8 |
E | Long Answer Questions | 3 | 5 | 15 |
Total | — | 33 | — | 70 |
How Is the CBSE Class 12 Biology Practical Exam Conducted?
The CBSE Class 12 Biology practical examination carries 30 marks and evaluates students' practical knowledge, experimental skills, record maintenance, and subject understanding. The component-wise marks distribution is provided below:
Practical Component | Marks |
Identification/Familiarity with Apparatus | 5 |
Written Test (Based on Prescribed Practicals) | 10 |
Practical Records | 5 |
Viva | 10 |
Total | 30 |
CBSE Class 12 Biology Syllabus and Course Structure 2026-27
The CBSE Class 12 Biology syllabus 2026-27 is divided into five major units covering reproduction, genetics, human welfare, biotechnology, and ecology. The complete unit-wise course structure and marks distribution are given below:
Unit No. | Unit Name | Marks |
Unit VI | Reproduction | 16 |
Unit VII | Genetics and Evolution | 20 |
Unit VIII | Biology and Human Welfare | 12 |
Unit IX | Biotechnology and its Applications | 12 |
Unit X | Ecology and Environment | 10 |
Total | 70 |
Note: The CBSE Class 12 Biology course structure begins with Unit VI, as Units I–V are covered in Class 11.
How to Practise CBSE Class 12 Biology Previous Year Question Papers Effectively?
Students can improve their preparation for the CBSE Class 12 Biology board examination by following these tips while practising previous year question papers:
- Understand the Exam Pattern: Familiarise yourself with the question paper format, section-wise marks distribution, and time allocation. Practise completing each section within the stipulated time.
- Identify Frequently Asked Topics: Focus on recurring questions and important concepts from previous years, particularly in chapters such as Genetics, Ecology, and Human Physiology.
- Follow the Marking Scheme: Frame your answers according to the marks assigned to each question. Provide brief responses for 2-mark questions and detailed explanations for questions carrying 5 marks.
- Write Clear and Structured Answers: Keep your answers precise and relevant. Use appropriate headings, bullet points, flowcharts, and labelled diagrams wherever required, especially for descriptive questions.
- Analyse Your Performance: Review your answers after completing each paper. Identify mistakes, work on weaker topics, and revise concepts that need improvement. Regular practice also helps build confidence and reduce exam-related stress.
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Frequently Asked Questions
Ques: Why should students solve CBSE Class 12 Biology previous year question papers?
Ans: Solving previous year question papers helps students understand the exam pattern, marking scheme, frequently asked questions, and important topics. It also improves speed and time management.
Ques: Where can I download CBSE Class 12 Biology previous year question papers?
Ans: Students can download CBSE Class 12 Biology previous year question papers in PDF format from educational websites and the official CBSE website.
Ques: How many marks does the CBSE Class 12 Biology theory paper carry?
Ans: The CBSE Class 12 Biology theory examination carries 70 marks, while the practical examination is conducted for 30 marks.
Ques: Which topics are important for the CBSE Class 12 Biology board exam?
Ans: Important topics include Genetics and Evolution, Reproduction, Biotechnology, Ecology, and Biology and Human Welfare. Students should refer to the prescribed syllabus for complete preparation.
Ques: How many years of previous question papers should students practise for CBSE Class 12 Biology?
Ans: Students should ideally practise the previous 5 years' question papers to become familiar with different question formats, recurring concepts, and the overall examination pattern.