ISC Class 12 Biology specimen paper 2027 released: understand new exam pattern
In short
- The Council for the Indian School Certificate Examinations (CISCE) published the ISC Class 12 Biology Specimen Sample Question Paper 2027 on August 3, 2026.
- The specimen paper is available on the official website, cisce.org, to help students understand the latest question paper format for the ISC Board Exam 2027.
- The Biology exam will be for 100 marks, comprising 70 marks for theory and 30 marks for internal assessment, with a duration of 2 hours.
- The paper includes multiple-choice questions, short answers, and long answers, with internal choices provided in some sections.
- Around 40% of the questions in the specimen papers are based on application, analysis, interpretation, and evaluation, aligning with NEP 2020 guidelines.
The Council for the Indian School Certificate Examinations (CISCE) released the ISC Class 12 Biology Specimen Sample Question Paper 2027 on August 3, 2026. The specimen paper, published on the official website cisce.org, is intended to assist students in understanding the latest question paper format, types of questions, important topics, and weightages of sections for the upcoming ISC Board Exam 2027.
The release provides a roadmap for students preparing for the academic year 2025-26, offering insights into the structure and nature of the Biology examination. The specimen papers are designed according to the latest syllabus and exam pattern, incorporating guidelines from the National Education Policy (NEP) 2020.
ISC Class 12 Biology Exam Structure
The ISC Class 12 Biology exam for the academic year 2025-26 carries a total of 100 marks. This includes 70 marks for the theory component and 30 marks for internal assessment. The examination duration for Biology is 2 hours, with an additional 15 minutes provided as reading time. The mode of examination is offline, conducted via pen and paper, and the medium of the exam is Hindi and English.
The question paper format for Biology includes Multiple Choice Questions (MCQs), Short Answers, and Long Answers, with choice-based options available. The paper is structured into four sections, A, B, C, and D, each with a specific number of questions and marks allocated. Internal choices are provided in one question within Sections B, C, and D.
| Section | Number of Questions | Marks per Question | Total Marks | Remarks |
|---|---|---|---|---|
| A | 20 | 1 | 20 | Short-answer questions |
| B | 7 | 2 | 14 | Internal choice in one question |
| C | 7 | 3 | 21 | Internal choice in one question |
| D | 3 | 5 | 15 | Internal choice in one question |
| Total | 18 | – | 70 | Entire paper |
Weightage of Topics and Question Styles
The specimen paper outlines the weightage assigned to various units within the Biology syllabus. ‘Reproduction’ carries the highest weightage at 16 marks, followed by ‘Genetics and evolution’ and ‘Ecology and environment’, both with 15 marks. ‘Biology and Human Welfare’ is allocated 14 marks, while ‘Biotechnology and its applications’ accounts for 10 marks. This distribution helps students prioritize their study efforts.
The question style in the specimen papers emphasizes competency-based assessment, with approximately 40% of questions focusing on application, analysis, interpretation, and evaluation. Questions are based on Bloom’s Taxonomy, assessing skills such as recall, understanding, application, analysis, and evaluation. This approach aims to move beyond rote learning and encourage deeper conceptual understanding.
| Sl.no | Unit | Weightage |
|---|---|---|
| 1 | Reproduction | 16 marks |
| 2 | Genetics and evolution | 15 marks |
| 3 | Biology and Human Welfare | 14 marks |
| 4 | Biotechnology and its applications | 10 marks |
| 5 | Ecology and environment | 15 marks |
| Total | 70 marks |
Guidance for Students and Preparation
The specimen papers are official question papers released by CISCE and are designed to help students understand the actual board exam paper, including its format, question types, internal choices, and answer length. They are not a replacement for the syllabus or textbooks but serve as a roadmap for preparation. Students are advised to practice these papers after completing their syllabus to improve speed and accuracy.
To download the official ISC sample papers, students should visit cisce.org, navigate to the ‘Examinations’ or ‘Publications’ section, select ISC Class 12 and the Academic session 2026-27, and then choose their subject. Answer keys are typically included with each specimen paper in the same PDF document. The ISC Class 12 Specimen Papers 2026-27 are expected to be of moderate to difficult difficulty, reflecting the new competency-based exam pattern.
| Exam Component | Details |
|---|---|
| Conducting Body | CISCE (Council for the Indian School Certificate Examinations) |
| Class | ISC Class 12 (after two years of study beyond Class 10) |
| Typical Paper Duration | 3 hours per subject |
| Marks Split (most subjects) | External theory + Internal/Project assessment |
| Example Split | 70 external + 30 internal, or 80 external + 20 internal (varies by subject) |
| Question Style | Application, analysis, interpretation, and evaluation-based questions |
Further reading
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