
CBSE Class 12 Biology Previous Year Question Papers are an essential resource for students aiming to score high in the board exams.
These papers give a clear understanding of the exam structure, types of questions, marking scheme, and frequently asked concepts. By practicing previous years’ questions, students can identify important chapters and focus on high-weightage topics for efficient preparation.
Regularly solving Class 12 CBSE Biology Previous Year Question Paper also enhances problem-solving speed, accuracy, and time management. These solutions allow students to self-assess their preparation, identify weak areas, and revise effectively.
Class 12 CBSE Previous Year Question Paper 2025 are actual question papers from the 2025 CBSE Biology board exam, available in multiple sets and formats (such as Set 1, Set 2, Set 3, etc.), and can be downloaded in PDF format.
Practising with these real exam papers helps you understand the types of questions asked, the marking scheme, and the way concepts from each chapter are tested.
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CBSE Class 12 Biology Previous Year Question Papers 2025 Set-wise |
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Set Number |
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CBSE Class 12 Biology Previous Year Question Papers Set 1 |
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CBSE Class 12 Biology Previous Year Question Papers Set 2 |
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CBSE Class 12 Biology Previous Year Question Papers Set 3 |
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CBSE Class 12 Biology Previous Year Question Papers Set 4 |
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CBSE Class 12 Biology Previous Year Question Papers Set 5 |
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CBSE Class 12 Biology Previous Year Question Papers Set 6 |
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Enhance your exam preparation by downloading the CBSE Class 12 Biology Previous Year Question Papers.
These papers give you a clear idea of the exam pattern, types of questions asked, and help you practice effectively to improve your performance.
Below are the Previous 5 Year Question Paper Of Biology Class 12 CBSE:
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CBSE Class 12 Biology Previous Year Question Papers |
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Year |
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CBSE 12th Board Biology Question Paper 2024 |
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CBSE 12th Board Biology Question Paper 2023 |
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CBSE Class 12 Biology Practice Question 2022 |
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CBSE Class 12 Biology Practice Question 2021 |
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CBSE Class 12 Biology Question Paper 2019 |
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CBSE Class 12 Biology Question Paper 2018 |
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The exam pattern and marking scheme for CBSE Class 12 Biology provide valuable insights into the types of questions and marks distribution that students can expect in their upcoming board exams. Below is a detailed breakdown of the exam pattern, followed by the marking scheme for both theory and practical exams. The theory exam for Biology is divided into different sections based on the types of questions asked. Here is how the question paper is structured:
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CBSE Class 12 Biology Exam Pattern and Marking Scheme |
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Section |
Type of Question |
No. of Questions |
Marks Per Question |
Total Marks |
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A |
Multiple-Choice Questions (MCQs)/ Assertion-Reasoning |
16 |
1 |
16 |
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B |
Short Answer Questions |
5 |
2 |
10 |
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C |
Short Answer Questions |
7 |
3 |
21 |
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D |
Case-based/Source-based/Passage-based/Integrated Assessment Questions |
2 |
4 |
8 |
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E |
Long Answer Questions |
3 |
5 |
15 |
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TOTAL |
33 |
70 |
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The practical exam is also an important part of the overall assessment. The practical exam is divided into various components, with specific marks allocated to each. Below is the practical exam pattern:
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CBSE Class 12 Biology Practical Exam Pattern |
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Practical Component |
Marks |
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Identification/Familiarity with Apparatus |
5 |
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Written Test (Based on prescribed Practicals) |
10 |
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Practical Records |
5 |
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Viva |
10 |
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TOTAL |
30 |
The following is the course structure for CBSE Class 12 Biology for the academic year 2025-26. This structure includes the unit-wise marks distribution, which will help students prioritize topics accordingly for their preparation.
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CBSE Class 12 Biology Course Structure 2025-26 |
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Unit |
Unit Name |
Marks |
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VI |
Reproduction |
16 |
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VII |
Genetics and Evolution |
20 |
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VIII |
Biology and Human Welfare |
12 |
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IX |
Biotechnology and its Application |
12 |
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X |
Ecology and Environment |
10 |
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Total |
80 |
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Here are some helpful tips to effectively solve CBSE Class 12 Biology previous year question papers:
Review the question paper format and the distribution of marks across different sections. Pay attention to the time allotted for each section and practice managing your time accordingly.
Focus on commonly asked questions or recurring topics. Previous year papers often repeat concepts and themes, especially in topics like Genetics, Ecology, and Human Physiology.
Pay attention to the marks allotted for each question and frame your answer accordingly. A 5-mark question requires more detailed explanation than a 2-mark question.
While answering, be precise and to the point. Avoid long explanations unless necessary. For long-answer questions, structure your answers using headings, bullet points, or
After completing a paper, go through your mistakes. This will help you identify weak areas and improve your understanding in those topics. Regular practice also helps reduce exam stress and boosts your confidence.
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