Bihar Board 12th Biology question paper 2026: The Bihar Board Class 12 Biology Examination 2025-26 is an important academic milestone for students of the Science stream, for those who are aspiring to build careers in medicine, biotechnology, life sciences, agriculture, nursing, and allied disciplines. The Bihar Board Class 12 Biology Exam is conducted by the Bihar School Examination Board (BSEB). The Bihar Board Class 12 Biology Exam will play an important role in shaping students’ higher education opportunities and performance in national-level entrance tests such as NEET and CUET.
For the academic session 2025–26, the Bihar Board 12th Examinations are scheduled to be held from February 2, 2026, to February 13, 2026. As per the official Bihar Board Class 12 exam schedule, the Class 12 Biology theory paper will be conducted on February 2, 2026, which marks the opening day of the Intermediate examinations. The Biology exam will take place in the Second Shift (First Sitting) from 9:30 AM to 12:45 PM, with an additional reading time provided at the beginning of the examination. Interested students can read this article to get complete details about the Bihar Board 12th Biology Overview, Bihar Board 12th Biology question Papers, Answer Keys, Exam Pattern 2025–26, Preparation Tips, and Frequently Asked Questions.
Bihar Board 12th Biology Overview 2025–26
The Bihar Board 12th Biology question paper follows the guidelines laid down by the BSEB board and is prepared strictly according to the prescribed NCERT-based syllabus.
| Particulars | Details |
| Board Name | Bihar School Examination Board (BSEB) |
| Class | 12 (Intermediate) |
| Stream | Science |
| Subject | Biology |
| Academic Session | 2025–26 |
| Exam Dates | February 2, 2026 – February 13, 2026 |
| Biology Exam Date | February 02, 2026 |
| Exam Shift | First Shift (First Sitting) |
| Exam Timing | 9:30 AM to 12:45 PM |
| Exam Duration | 3 Hours 15 Minutes |
| Exam Mode | Offline (Pen and Paper) |
| Total Marks | 100 |
| Theory Exam Marks | 70 |
| Practical Exam Marks | 30 |
| Question Types | Objective, Short Answer, Long Answer |
| Syllabus | NCERT-based |
How to download Bihar Board 12th Biology Question Papers 2026?
Students should follow the steps given below to download the Bihar Board 12th question paper 2026 for biology:
- Check the following table and click on the relevant link of the Bihar Board 12th Biology question papers.
- It will open a new page, and click on the download button.
- A PDF file that comprises the Bihar Board 12th Biology question papers will start to download.
- Start practising with the Bihar Board 12th Biology question papers for better preparation for the exams.
Bihar Board 12th Biology Question Paper 2026: Download PDF
Students appearing for the Class 12 Biology exam can download the Bihar Board 12th Biology Question Paper 2026 PDF after the examination. The Bihar Board 12th Biology question paper PDF helps students review the exam pattern, analyse question trends, and estimate their performance.
| Exam Date | Subject Title | Download Question Paper PDF |
| February 02, 2026 | Bihar Board 12th Biology Question Paper 2026 | To be available |
Bihar Board 12th Biology Previous Year Question Paper: Download PDF
Students can practice with the Bihar Board 12th Biology previous year question papers to help them understand the exam pattern and improve their preparation before the Bihar Board 12th Result is declared. The Bihar Board 12th previous year question papers PDFs are useful for revision, identifying important topics, and boosting confidence for future Biology examinations.
| BSEB 12th Biology Question Paper 2025 | Click Here |
| BSEB 12th Biology Question Paper 2024 | Click Here |
Bihar Board 12th Biology Model Question Paper 2025-26: Download PDF
The Bihar Board 12th Biology Model Question Paper 2025–26 is prepared according to the latest Bihar Board 12th Syllabus, which will help students understand the expected exam pattern. Students must practice the Bihar Board 12th model question paper PDFs, which will help in better revision, syllabus coverage, and confidence before the Biology examination.
Bihar Board 12th Biology Answer Key 2026 – Download PDF
The Bihar Board 12th Biology Answer Key 2026 helps students verify their responses after the examination conducted by the Bihar School Examination Board (BSEB). By using the Bihar Board 12th Answer Key PDF, students can check their expected marks and analyse their performance before the official result is declared.
| Subject Title | Download Answer Key PDF |
| Bihar Board 12th Biology Answer Key 2026 | To be available |
Bihar Board 12th Biology Exam Pattern 2025–26
The Bihar Board 12th Biology paper is designed as per the latest Bihar 12th Exam Pattern, which includes objective, short-answer, and long-answer questions.
| Section | Question Type | Number of Questions | Marks per Question | Total Marks |
| Section A | Objective (MCQs) | 35 (out of 70 given) | 1 | 35 |
| Section B | Short Answer | 10 (out of 20 given) | 2 | 20 |
| Section C | Long Answer | 3 (out of 6 given) | 5 | 15 |
| Total (Theory) | — | — | — | 70 Marks |
| Practical Exam | Practical + Viva | — | — | 30 Marks |
| Grand Total | — | — | — | 100 Marks |
- Exam Duration: 3 Hours 15 Minutes
- Exam Mode: Offline (Pen & Paper)
- Syllabus: NCERT-based (Botany + Zoology)
Preparation Tips for Bihar Board 12th Biology Exam 2025–26
- Students must study the NCERT Biology textbook properly, as all questions are strictly syllabus-based.
- Students must practice labelled diagrams regularly, mostly in reproduction, genetics, and biotechnology.
- Students must focus on MCQs, as they carry significant weight in the Bihar Board exam pattern.
- Students must revise important and high-weightage chapters like Genetics, Human Reproduction, Ecology, and Evolution.
Frequently Asked Questions (FAQs)
- Can students download Bihar Board 12th Biology papers in PDF format?
Ans. Yes, students can download the Bihar Board 12th Biology papers, which will be available in PDF for practice.
- How does the Bihar Board 12th Biology previous year question paper help students?
Ans. The Bihar Board 12th Biology previous year question paper will help students understand the exam pattern, manage time, and improve confidence.
- Are model question papers available for the Bihar Board 12th Biology Exam?
Ans. Yes, model question papers will be provided for each subject for the Bihar Board 12th Biology Exam.
- When will the Bihar Board 12th Biology exam be held in 2026?
Ans. The Bihar Board 12th Biology exam will be held on February 02, 2026.