CBSE Class 12 Biology Question Paper 2025 with Solutions PDF Download

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Class 12 Biology Question Paper 2025 PDF Download - FREE PDF

CBSE Class 12 Biology Question Paper 2025 is an essential resource for students preparing for the 2026 board exams. This practice paper is prepared based on the latest CBSE exam pattern, offering students an understanding of the paper structure, question types, and the marking scheme expected in the final exam.

The solved PDF includes detailed section-wise answers for all topics covered in the CBSE Class 12 Biology Syllabus. Additionally, students will find important chapters, and essential marking hints that will help in exam preparation. The solved PDF highlights key chapters, offering essential marking hints to help students focus on high-weightage areas. It also includes accurate diagrams for topics with clear labelling to ensure full marks.

We recommend that students solve the Class 12 Biology previous year question paper in a timed, exam-like environment for effective practice. You can download the Class 12 Biology Question Paper 2025 PDF for free from this page and use it to test your preparation. After completing the paper, compare your answers with Vedantu’s detailed solutions to identify mistakes, improve accuracy, and strengthen your performance before the final exam.

CBSE Class 12 Biology Setwise Question Papers 2025

S. No	CBSE Class 12 Biology Question Paper 2025
1	CBSE Class 12 Biology Question Paper 2025 Set 1 (57/1/1)
2	CBSE Class 12 Biology Question Paper 2025 Set 2 (57/1/2)
3	CBSE Class 12 Biology Question Paper 2025 Set 3 (57/1/3)
4	CBSE Class 12 Biology Question Paper 2025 Set 1 (57/2/1)
5	CBSE Class 12 Biology Question Paper 2025 Set 2 (57/2/2)
6	CBSE Class 12 Biology Question Paper 2025 Set 3 (57/2/3)
7	CBSE Class 12 Biology Question Paper 2025 Set 1 (57/4/1)
8	CBSE Class 12 Biology Question Paper 2025 Set 2 (57/4/2)
9	CBSE Class 12 Biology Question Paper 2025 Set 3 (57/4/3)
10	CBSE Class 12 Biology Question Paper 2025 Set 1 (57/5/1)
11	CBSE Class 12 Biology Question Paper 2025 Set 2 (57/5/2)
12	CBSE Class 12 Biology Question Paper 2025 Set 3 (57/5/3)

Unit-wise Weightage for CBSE Class 12 Biology 2025

The Class 12 Biology syllabus is divided into five major units, each carrying a specific weightage in the final marking scheme. Understanding the marks distribution across these units will help students prioritise their efforts and focus on the areas that carry more weight.

Unit	Title	Marks
VI	Reproduction	16
VII	Genetics and Evolution	20
VIII	Biology and Human Welfare	12
IX	Biotechnology and its Applications	12
X	Ecology and Environment	10
	Total	70

CBSE Class 12 Biology Question Paper Design 2025

Competency	Description	Weightage	Marks (out of 70)	Question Types Included
Demonstrate Knowledge and Understanding	Assessing students’ ability to recall, comprehend, and explain fundamental concepts, definitions, and facts.	50%	35	Objective-type questions, Very Short Answer, Short Answer
Application of Knowledge/Concepts	Evaluates the application of biology concepts and theories in real-life scenarios, experiments, and case studies.	30%	21	Case-based questions, Application-based Short Answer
Analyse, Evaluate, and Create	Tests analytical skills, critical evaluation, data interpretation, and creative thinking in biological contexts.	20%	14	Case-based questions, Long Answer, Analysis-based Short Answer

CBSE Class 12 Biology Chapter-wise Weightage 2025-26

Unit	Chapter	Weightage
Unit VI: Reproduction	Sexual Reproduction in Flowering Plants	7 marks
	Human Reproduction	6 marks
	Reproductive Health	3 marks
	Total	16 marks
Unit VII: Genetics and Evolution	Principles of Inheritance and Variation	8 marks
	Molecular Basis of Inheritance	8 marks
	Evolution	4 marks
	Total	20 marks
Unit VIII: Biology and Human Welfare	Human Health and Diseases	9 marks
	Microbes in Human Welfare	3 marks
	Total	12 marks
Unit IX: Biotechnology and Its Applications	Biotechnology – Principles and Processes	6 marks
	Biotechnology and Its Applications	6 marks
	Total	12 marks
Unit X: Ecology and Environment	Organisms and Populations	5 marks
	Ecosystem	3 marks
	Biodiversity and Its Conservation	2 marks
	Total	10 marks

Important Chapters to Focus for the 2026 Biology Board Exam

To excel in the Class 12 Biology Board Exam 2026, it’s crucial to prioritize chapters that carry significant marks weightage. Based on the CBSE Class 12 Biology Marking Scheme, here are the most important chapters that students should focus on:

Molecular Basis of Inheritance

Understand the core concepts of DNA replication, transcription, translation, and gene regulation.

Principles of Inheritance and Variation

Learn Mendelian genetics, inheritance patterns, and genetic disorders.

Human Reproduction

Focus on the anatomy of the human reproductive system and processes such as fertilization and gametogenesis.

Reproductive Health

Gain insights into reproductive health, contraception, and sexually transmitted diseases (STDs).

Human Health and Diseases

Be thorough with diseases, their causes, and preventive measures, including immunity and vaccines.

Biotechnology: Principles and Processes

Learn about genetic engineering, cloning, and the applications of biotechnology in medicine and agriculture.

Ecosystem and Biodiversity

Study ecological concepts like energy flow, food chains, and the conservation of biodiversity.

Practice with Vedantu’s Class 12 CBSE Board Solved Papers | Biology 2025

Preparing for the Class 12 Biology Board Exam 2025? Vedantu has you covered! Our Biology Class 12 Question Paper 2025 is designed to help you practice effectively and improve your exam performance. These solved papers are aligned with the latest CBSE guidelines, giving you a clear understanding of what to expect in the real exam.

The Class 12 Biology Question Paper 2025 is available for download, and you can use it to:

Familiarize yourself with the exam pattern: Get a feel for the type of questions and marking scheme.
Build your time-management skills: Practice solving the paper within the given time frame.
Strengthen your understanding: Compare your answers with Vedantu's solutions and identify areas for improvement.
Improve your confidence: Regular practice with previous years' papers helps reduce exam anxiety and enhances your chances of scoring higher marks.

Download the Biology Class 12 2025 Question Paper today and start your journey toward exam success with Vedantu’s expert resources!

CBSE Class 12 Biology Year-wise Question Papers (2014-2024)

S. No	Biology Class 12 Previous Year Question Paper - Year-wise Links
1.	CBSE Class 12 Biology Question Paper 2024
2.	CBSE Class 12 Biology Question Paper 2023
3.	CBSE Class 12 Biology Question Paper 2022
4.	CBSE Class 12 Biology Question Paper 2020
5.	CBSE Class 12 Biology Question Paper 2019
6.	CBSE Class 12 Biology Question Paper 2018
7.	CBSE Class 12 Biology Question Paper 2017
8.	CBSE Class 12 Biology Question Paper 2016
9.	CBSE Class 12 Biology Question Paper 2015
10.	CBSE Class 12 Biology Question Paper 2014

Subject-wise Class 12 Previous Year Question Paper

S. No	CBSE Previous Year Question Papers Class 12 - 2025
1.	Previous Year Question Paper for Class 12 Computer Science With Solutions 2025
2.	Previous Year Question Paper for Class 12 Physics With Solutions 2025
3.	Previous Year Question Paper for Class 12 Maths With Solutions 2025
4.	Previous Year Question Paper for Class 12 English Core With Solutions 2025
5.	Previous Year Question Paper for Class 12 English Elective With Solutions 2025
6.	Previous Year Question Paper for Class 12 Hindi Core With Solutions 2025
7.	Previous Year Question Paper for Class 12 Hindi Elective With Solutions 2025
8.	Previous Year Question Paper for Class 12 Chemistry With Solutions 2025
9.	Previous Year Question Paper for Class 12 Business Studies With Solutions 2025
10.	Previous Year Question Paper for Class 12 Accountancy With Solutions 2025
11.	Previous Year Question Paper for Class 12 Physical Education With Solutions 2025
12.	Previous Year Question Paper for CBSE Class 12 Economics With Solutions 2025
13.	Previous Year Question Paper for Class 12 Entrepreneurship With Solutions 2025

Related Study Material Class 12 Biology

S. No	Important Study Material for Biology Class 12
1.	CBSE Class 12 Biology Notes
2.	Class 12 Biology NCERT Solutions
3.	Class 12 Biology NCERT Books
4.	CBSE Class 12 Biology Important Questions
5.	CBSE Class 12 Biology Sample Paper

FAQs on CBSE Class 12 Biology Question Paper 2025 with Solutions PDF Download

1. Where can I download the CBSE Class 12 Biology previous year question paper 2025?

You can easily download the CBSE Class 12 Biology Question Paper 2025 and previous year question papers from Vedantu’s website. We offer Class 12 Biology Question Paper 2025 PDF download for free, providing you with the most accurate and updated resources to enhance your exam preparation.

2. Are CBSE Class 12 Biology previous year paper 2025 available with solutions?

Yes, Vedantu provides CBSE Class 12 Biology Question Paper 2025 with answers PDF. Our solved papers offer detailed step-by-step solutions, allowing you to understand the correct answer format and marking scheme, which are crucial for Class 12 Biology 2025 question paper preparation.

3. Is the CBSE Class 12 Biology Question paper 2025 useful for board exam preparation?

Absolutely! Practicing the CBSE Class 12 Biology Question Paper 2025 is one of the most effective ways to prepare for the Class 12 Biology Board Exam. Previous year papers give you insight into the question format, topics frequently covered, and the marking distribution, which are all essential for effective exam preparation. They help you identify key areas to focus on and improve your time-management skills.

4. Do CBSE Class 12 Biology question papers 2025 follow the latest syllabus?

Yes, the Class 12 Biology question papers 2025 available on Vedantu follow the latest CBSE syllabus for 2025. Our biology class 12 2025 question paper collection is in line with the updated exam pattern, ensuring that you are practicing with the most relevant materials to prepare for your board exams.

5. Are CBSE Class 12 Biology question papers 2025 available set-wise?

Yes, CBSE Class 12 Biology Question Paper 2025 is available set-wise on Vedantu. We provide all sets of the biology class 12 question paper 2025, including sample papers and previous year question papers, so that you can practice effectively for different sections and increase your chances of scoring well in the exam.

7. How can practising CBSE Class 12 Biology previous year papers 2025 improve my performance?

By regularly solving the CBSE Class 12 Biology Question Paper 2025, you can enhance your understanding of important topics, boost your problem-solving skills, and improve your exam-taking strategies. Repeated practice with the Biology Class 12 2025 question paper will help you gain confidence and reduce exam stress.

9. Are solutions provided for the Class 12 Biology 2025 question papers?

Yes, all CBSE Class 12 Biology Question Paper 2025 PDF download resources on Vedantu come with detailed solutions. These solutions help you understand the step-by-step approach to solving each question, ensuring that you grasp the key concepts required for your exams.