CBSE Class 12 Biology question paper 2026: As per the CBSE official schedule, the CBSE Class 12 Biology Exam 2026 was held on March 27, 2026, in the morning session from 10:30 AM to 1:30 PM. Students were given 3 hours to complete the paper. The overall CBSE Class 12 board examinations are being conducted from February 17 to April 9, 2026. The CBSE Class 12 Examination 2026 will be conducted across the country by the Central Board of Secondary Education (CBSE).
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Biology is a highly important subject for the science stream students. It plays a key role in shaping future academic and career paths in medicine, biotechnology, life sciences, pharmacy, nursing, and research-oriented fields. Students must score good marks in the Biology exam as it will impact the overall board percentage and preparation for competitive examinations such as NEET, CUET and more. Interested students can read this article to get complete details about the CBSE Class 12 Biology Overview, Class 12 Biology question Papers, Answer Keys, Exam Pattern 2025–26, Preparation Tips, and Frequently Asked Questions.
The table below highlights all the important details related to the CBSE Class 12 Biology Examination 2026.
Particulars | Details |
Exam Name | CBSE Class 12 Board Examination 2025–26 |
Conducting Body | |
Subject | Biology |
Exam Date | March 27, 2026 |
Exam Timing | 10:30 AM to 1:30 PM |
Total Marks | 70 Marks (Theory) |
Internal Assessment | 30 Marks |
Exam Duration | 3 Hours |
Exam Mode | Offline (Pen & Paper) |
Syllabus | Full Class 12 Biology syllabus (NCERT) |
Question Types | MCQs, Very Short Answer, Short Answer, Long Answer |
Exam Window | February 17 to April 9, 2026 |
Students should follow the steps given below to download the CBSE Class 12 Biology question paper 2025-26:
Check the following table and click on the relevant link of CBSE Class 12 Biology question papers.
It will open a new page, and click on the download button.
A PDF file that comprises CBSE Class 12 Biology question papers will start to download.
Start practising with the CBSE Class 12 Biology question papers for better preparation for the exams.
Students can get the CBSE Class 12 Biology Question Paper 2026, which is useful to know about the CBSE Class 12 exam pattern, question difficulty, and topic-wise distribution. Students can download the CBSE Class 12 Biology Question Paper 2026 from the table given below.
Exam Date | Subject Title | Download Question Paper PDF |
March 27, 2026 | CBSE Class 12 Biology Question Paper 2026 |

CBSE Class 12 Biology Previous Year Question Papers help students get an idea of the difficulty level and structure of the board exam. The CBSE Class 12 Previous Year Question Papers will highlight important chapters and repeated questions from the syllabus, and students must practice them to get good marks in the exam.
CBSE Class 12 Biology Question Paper Year Wise | Download Link |
Previous Year Question Paper for Class 12 Biology 2025 (Code-XY1ZW) - Set 1 | |
Previous Year Question Paper for Class 12 Biology 2025 (Code-XY1ZW) - Set 2 | |
Previous Year Question Paper for Class 12 Biology 2025 (Code-XY1ZW) - Set 3 | |
CBSE Class 12 Biology Elective Question Papers 2024 (Code-PP4QQ/4) – All Sets (1, 2, 3) | |
CBSE Class 12 Biology Elective Question Papers 2024 (Code-RP5PS/5) – All Sets (1, 2, 3) | |
CBSE Class 12 Biology Elective Question Papers 2024 (Code-RRSS2/2) – All Sets (1, 2, 3) | |
CBSE Class 12 Biology Elective Question Papers 2024 (Code-SQR1P/1) – All Sets (1, 2, 3) | |
CBSE Class 12 Biology Elective Question Papers 2024 (Code-SSRR3/3) – All Sets (1, 2, 3) | |
Previous Year Question Paper for Class 12 Biology 2023 | |
Previous Year Question Paper for Class 12 Biology 2022 |
The CBSE Class 12 Biology Sample Question Paper 2025–26 is released to make students familiar with the latest exam pattern and question types. Students must practice the CBSE Class 12 Sample Question Paper 2025-26 to understand marking schemes and improve exam readiness.
CBSE Class 12 Biology Sample Paper 2025-26 | |
CBSE Class 12 Biology Sample Paper 2024-25 | |
CBSE Class 12 Mathematics Sample Paper 2023-24 |
After the examination, students usually wait to calculate their expected marks. To help with this, a CBSE Class 12 Biology Answer Key 2026 is uploaded in the table given below. The CBSE Class 12 answer key will make it easy to identify mistakes and calculate the expected score.
Exam Date | Subject Title | Download Answer Key PDF |
March 27, 2026 | CBSE Class 12 Biology Answer Key 2026 |
Given below are the answers to the objective questions from the CBSE Class 12 Biology Question Paper 2026. From the complete answer key of all sections, students can refer to the link given in the table above.
(B)
(C)
(D)
(B)
(D)
(C)
(D)
(B)
(C)
(B)
(C)
(C)
(A)
(C)
(A)
(B)
As the exam is concluded, the analysis of the CBSE Class 12 Biology Question Paper 2026 is uploaded below.
Overall difficulty level: The paper was moderate. Most questions were NCERT-based with a few application-type questions.
Section-wise analysis: Section A (MCQs): Easy to moderate, mostly direct questions.
Section B (2 marks): Easy and straightforward.
Section C (3 marks): Moderate, required proper explanation.
Section D (Case-based): Moderate, concept-based.
Section E (Long answers): Moderate, some diagrams required.
Key chapters: Genetics, Reproduction, Biotechnology, Ecology, Human Health.
Challenging questions: Assertion-reason MCQs, DNA-based numericals, case-based questions.
Common mistakes: Ignoring NCERT lines, wrong diagrams, and confusion in genetics.
Useful tips: Focus on NCERT, practice diagrams, and understand concepts clearly.
Students will find the CBSE Class 12 Biology Exam Pattern 2025–26, which is helpful to understand the structure of the question paper and the distribution of marks. The CBSE Class 12 exam pattern will help them to make a proper preparation plan and manage time during the exam.
Type of Questions | No. of Questions | Marks |
1 Mark | 16 | 16 |
2 Marks | 5 | 10 |
3 Marks | 7 | 21 |
4 Marks | 2 | 8 |
5 Marks | 3 | 15 |
Total | 33 | 70 |
Internal Assessment (30 Marks)
Students must complete all assigned practicals, records, and activities to score full marks in the Internal Assessment.
The CBSE Class 12 Biology Question Paper will help students understand the exam pattern and types of questions asked in the examination.
Students will be able to improve their time management skills by practising solving questions within the actual exam duration.
Students will be able to build confidence and reduce fear as they will be familiar with the exam environment.
Students will be able to identify important chapters and topics that are frequently asked in examinations.
Frequently Asked Questions (FAQs)
Yes, students can download the CBSE Class 12 Biology papers which are available in PDF for practice.
The CBSE Class 12 Biology exam will help students understand the exam pattern, manage time, and improve confidence.
Yes, model question papers are provided for each subject for CBSE Class 12 Biology Exam.
The CBSE Class 12 Biology exam was held on March 27, 2026.
On Question asked by student community
Dear Student,
You can appear for improvement exams in other passed subjects after clearning compartment exams. The Central Board of Secondary Education (CBSE) conducts the CBSE Class 12 improvement exams for students who are not satisfied with their scores in the Class 10 and Class 12 board examinations.
You can
Hi Madhuri,
For CBSE Class 12 Maths preparation, especially if your basics are weak, please refer to the link given below:
https://school.careers360.com/boards/cbse/cbse-class-12-maths-preparation-tips
Hi Jatin!
Given below is the link to access CBSE Class 12 English Previous Year Questions:
https://school.careers360.com/download/ebooks/cbse-class-12-english-previous-year-question-papers
For subjectwise previous year question papers, you might find this link useful:
https://school.careers360.com/boards/cbse/cbse-previous-year-question-papers-class-12
Dear Student,
If you have 6 subjects with Hindi as an additional subject and you have failed in one compartment subject, your additional subject which is Hindi can be considered pass in the board examination.
Hi,
The CBSE Class 10 Computer Applications exam (Set-1) was conducted on 27 February 2026 from 10:30 AM to 12:30 PM as part of the CBSE board exams. The paper included MCQs, very short answer questions, short answers, long answers, and case-study questions based on topics like HTML, networking, internet
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