CBSE Class 12 Biology Answer Key 2026:
The Central Board of Secondary Education (CBSE) conducted the Class 12 Biology exam on March 27, 2026, from 10:30 AM to 1:30 PM. Lakhs of students appeared for the examination across India. The CBSE Class 12 Biology Unofficial Answer Key 2026 is prepared by subject experts immediately after the exam to help students evaluate their performance.
Students can use the unofficial answer key to cross-check their responses and estimate their scores out of 70 marks (theory paper). The remaining 30 marks are allotted for practical/internal assessment.
CBSE Class 12 Biology 2026 - Exam Highlights
| Particulars | Details |
|---|---|
| Conducting Board | Central Board of Secondary Education (CBSE) |
| Exam Name | CBSE Class 12 Biology Exam 2026 |
| Subject Code | 044 |
| Exam Date | March 27, 2026 |
| Exam Time | 10:30 AM - 1:30 PM |
| Total Marks | 100 (70 Theory + 30 Practical) |
CBSE Class 12 Biology Unofficial Answer Key 2026
The CBSE does not release an official answer key for board examinations. However, experienced faculty and subject experts prepare the CBSE Class 12 Biology Answer Key 2026 (Unofficial) based on the question paper immediately after the exam.
This answer key includes section-wise solutions covering all questions from the Biology paper. Students should use it as a reference to estimate their scores and identify mistakes.
| Answer Key | Link |
|---|---|
| CBSE Class 12 Biology Unofficial Answer Key 2026 | Will be updated after 1:30 PM on March 27, 2026 |
How to Calculate Your Score Using CBSE Class 12 Biology Answer Key 2026
The CBSE Class 12 Biology theory exam carries 70 marks. Students can calculate their estimated score using the marking scheme provided below.
| Section | Question Type | Marks Per Question | Total Marks |
|---|---|---|---|
| Section A | MCQs | 1 | 16 |
| Section B | Very Short Answer | 2 | 10 |
| Section C | Short Answer | 3 | 21 |
| Section D | Case-based | 4 | 8 |
| Section E | Long Answer | 5 | 15 |
| Total | 70 Marks |
Note: The overall exam is of 100 marks, including 30 marks for practical/internal assessment. Students must secure at least 33% marks to pass.
How to Download CBSE Class 12 Biology Answer Key 2026
Follow these simple steps to access the CBSE Class 12 Biology Answer Key 2026:
- Visit trusted education portals or coaching institute websites.
- Search for CBSE Class 12 Biology Answer Key 2026.
- Select the correct set (Set 1, Set 2, Set 3, etc.).
- Open the PDF answer key.
- Compare your answers and calculate your expected score.

