CISCE Board Exams 2026 LIVE: ISC Class 12 Biology question paper analysis; answer key, updates

Aatif Ammad | March 6, 2026 | 11:00 PM IST | 10 mins read

ISC 12th Biology exam will carry 70 marks for theory and 30 marks for practical, with students required to secure at least 40% separately in both components to pass. Check details on paper analysis, pattern, timings and important units

ISC Class 12th Syllabus 2026

Get the complete ISC Class 12 Syllabus 2026 with subject-wise topics. Plan your preparation smartly with the latest updated syllabus.

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The Council for the Indian School Certificate Examinations (CISCE) concluded the Indian School Certificate (ISC) Class 12 Biology paper today at 5:00 pm. Students are advised to reach their respective exam centres at least 40–45 minutes before the exam begins to complete entry and verification procedures.

Meanwhile, the council has announced that examinations scheduled for the same date in some international locations, including parts of the UAE and the Middle East, have been postponed. Revised dates for these centres will be announced later.

The ISC 12th Biology paper will be assessed through a combination of theory and practical components. The theory paper carries 70 marks, while the remaining 30 marks are allotted to the practical.

Students will be given three hours to complete the written paper, along with an additional 15 minutes of reading time before the exam begins.

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ISC Class 12 Biology Exam 2026: Passing marks

As per the exam pattern, the question paper is divided into four sections—A, B, C, and D. Section A is compulsory and generally includes multiple-choice questions and very short-answer questions.

Sections B, C and D feature a mix of short-answer, long-answer and case-study-based questions designed to test both conceptual understanding and application of biological concepts.

To qualify in the ISC Class 12 Biology exam 2026, candidates are required to score at least 40% marks individually in both the theory and practical sections.

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ISC Biology Exam 2026: Important topics

Students preparing for the ISC Class 12 Biology examination should pay special attention to the following core units, which carry significant weightage in the question paper:

  • Genetics and Evolution: This unit generally carries the highest weightage in the paper and includes analytical and problem-based questions related to heredity, variation, and evolutionary concepts.
  • Reproduction: Questions from this section focus on reproductive processes in humans and other organisms. Though detail-oriented, it is considered a scoring unit if concepts are clearly revised.
  • Biotechnology: This topic usually includes straightforward questions on biotechnology principles and their real-world applications, making it relatively predictable for students.
  • Ecology and Environment: Despite often being overlooked by students, this unit appears regularly in the exam with questions related to ecosystems, environmental issues, and biodiversity.
  • Biology and Human Welfare: This section covers topics linked to human health, diseases, and the role of microbes in medicine and welfare.
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LIVE UPDATES
ISC Biology Paper 2026: CISCE concluded the ISC Class 12 Biology exam today at 5 pm. Check the details on paper analysis, exam timing, important questions, answer key, result date, pattern, and other updates.

March 6, 2026 | 11:00 PM IST

Students ask "Can I get my result offline?"

No. Students will only be able to access and download their ISC 2026 results online on the official website by using their login credentials.

March 6, 2026 | 10:00 PM IST

What ISC Class 12th exam will be held on March 7?

The next ISC Class 12th board exams will be held on March 7, 2026, are Fashion Designing - Paper 1 (Theory) and Indian Music - Hindustani - Paper 1 (Theory), scheduled for 2:00 pm.

March 6, 2026 | 09:00 PM IST

ISC Class 12th Question Papers 2026

Candidates can check the pointers below for the ISC Class 12th Question Papers 2026:

  1. The CISCE board releases the ISC sample question papers for the students to practice.
  2. Students must read the previous years’ ISC question papers and understand the exam pattern and typology of questions asked in the exam.
  3. The ISC 12th question papers are helpful for students to study and practice solving them sincerely.

March 6, 2026 | 08:00 PM IST

ISC Class 12th Exam 2026 Dress code

As per the guidelines, regular students are required to wear their school uniform, while private students need to wear light coloured clothes for the ISC 2026 examination.

March 6, 2026 | 07:00 PM IST

CISCE Board Exams 2026: Can I get my result offline?

Students will only be able to access and download their ISC results online on the official website by using their login credentials.

March 6, 2026 | 06:00 PM IST

ISC Class 12 Exam 2026: Important instructions for students

Students appearing for the ISC Class 12 examination conducted by the Council for the Indian School Certificate Examinations (CISCE) will receive 15 minutes to read the question paper before the exam begins. Candidates should arrive at the examination centre at least 30 minutes early.

The exam will begin at 2:00 PM and continue for three hours. Students are strictly prohibited from bringing books, notes, mobile phones, smartwatches, or any wireless electronic devices into the examination hall.

March 6, 2026 | 05:07 PM IST

ISC Class 12 Biology exam ends

The ISCE has concluded the ISC Class 12 Biology paper today at 5:00 pm. The authority will conduct the Fashion Designing - Paper 1 (Theory) and Indian Music - Hindustani - Paper 1 (Theory) tomorrow, March 7, 2026.

March 6, 2026 | 04:30 PM IST

ISC Class 12 Biology Exam 2026: Question paper structure

According to the exam pattern set by the Council for the Indian School Certificate Examinations (CISCE), the ISC Biology question paper is divided into four sections:

  • Section A (20 marks): Short-answer questions based on recall and application.

  • Section B (14 marks): Questions focused on application-based concepts.

  • Section C (21 marks): Reasoning, analytical, and diagram-related questions.

  • Section D (15 marks): Diagram-based questions along with explanatory answers.

March 6, 2026 | 04:05 PM IST

ISC Biology Answer Key 2026: Students can check expected scores

After the completion of the ISC Class 12 Biology exam, students will be able to access the unofficial answer key to review their responses and estimate their probable scores.

March 6, 2026 | 03:33 PM IST

ISC Class 12th board exam time table 2026

The timetable for the ISC Class 12th board exam  is given below.

Exam dates

Subjects

March 6, 2026

Biology - Paper 1 (Theory)

March 7, 2026

Fashion Designing - Paper 1 (Theory) and Indian Music - Hindustani - Paper 1 (Theory)

March 9, 2026

Mathematics

March 11, 2026

Business Studies

March 13, 2026

Bengali, Gujarati, Hindi, Kannada, Khasi, Mizo, Malayalam, Nepali, Odia, Punjabi, Tamil, Telugu, Urdu, Modern Armenian, Tibetan, Arabic, Sanskrit

March 14, 2026

Art Paper 2 (Drawing or Painting from Nature)

March 16, 2026

Physics - Paper 1 (Theory)

March 18, 2026

Physical Education

March 23, 2026

Economics and Biotechnology - Paper 1 (Theory)

March 25, 2026

Sociology

March 27, 2026

Computer Science - Paper I (Theory)

March 28, 2026

Art Paper 4 (Original Imaginative Composition in Colour)

March 30, 2026

Political Science

April 1, 2026

Elective English and Hospitality Management

April 4, 2026

Art Paper S (Crafts ‘A’)

April 6, 2026

Geography


March 6, 2026 | 03:00 PM IST

ISC Class 12th board exam 2026: When is next paper?

The next exam of ISC Class 12th board 2026 is on March 9, 2026 for the subject: Mathematics.

March 6, 2026 | 02:33 PM IST

ISC Class 12 Exam 2026: About 1.5 lakh students to appear

Approximately 1.5 lakh students are expected to appear for the ISC Class 12 examination 2026, conducted by the Council for the Indian School Certificate Examinations (CISCE).

March 6, 2026 | 02:30 PM IST

ICSE Class 10 Exam 2026: Passing criteria explained

To pass the ICSE Class 10 Examination, students must secure passing marks in at least five out of the six subjects they appear for. In addition, candidates are required to obtain passing grades in SUPW (Socially Useful Productive Work) and Community Service, which are evaluated internally. The minimum passing mark for each subject is 33%.

March 6, 2026 | 02:08 PM IST

CISCE Board Exam 2026: Important exam-day guidelines

CISCE Board Exam 2026: Important exam-day guidelines

Students appearing for the Council for the Indian School Certificate Examinations (CISCE) board exams in 2026 must follow several key instructions. Candidates should arrive at their examination centres at least 40–45 minutes before the exam begins to complete verification procedures and avoid last-minute delays.

Students must carry their hall ticket and school ID card for entry into the examination hall. Additionally, wearing the school uniform is mandatory, and casual or informal clothing will not be permitted.

March 6, 2026 | 01:39 PM IST

ISC Class 12 Biology Exam 2026: Paper pattern

The Council for the Indian School Certificate Examinations (CISCE) ISC Class 12 Biology question paper is divided into four sections — A, B, C, and D. Section A is compulsory and generally contains multiple-choice and very short-answer questions.

March 6, 2026 | 01:00 PM IST

ISC Biology Exam 2026 Today: Items students should bring

Students appearing for the ISC Class 12 Biology exam should carry only essential items, including their admit card, school ID, and basic stationery, for verification and writing the exam.

March 6, 2026 | 12:30 PM IST

ISC Class 12 exam 2026: Important guidelines for students

Students will receive 15 minutes to read the question paper before the exam starts and are advised to reach the examination centre at least 30 minutes early. The ISC Class 12 exam will begin at 2:00 pm and continue for three hours. Candidates are strictly prohibited from carrying books, papers, mobile phones, smartwatches, or any wireless devices into the examination hall.

March 6, 2026 | 12:00 PM IST

ISC Class 12 Biology exam pattern 2026

The ISC Class 12 Biology examination generally consists of two parts: theory and practical. The written theory paper carries 70 marks, while the practical component, which includes laboratory work and viva, is allotted 30 marks. Students are required to perform well in both sections to achieve a good overall score.

March 6, 2026 | 11:30 AM IST

ISC Class 12 Biology Exam 2026: Items allowed

Candidates appearing for the ISC Class 12 Biology exam should carry only essential stationery, their admit card, and school ID for verification at the examination centre.

March 6, 2026 | 11:00 AM IST

ICSE Class 12 Biology Answer Key 2026: Where to check

The ICSE Class 12 Biology answer key 2026 will be available online through expert analysis on YouTube channels, educational websites, and other online platforms shortly after the exam concludes.

March 6, 2026 | 10:30 AM IST

ISC Class 12 Biology exam 2026: Items to carry

Candidates appearing for the ISC Class 12 Biology exam should carry only essential stationery, their admit card, and school ID for verification at the examination centre.

March 6, 2026 | 09:44 AM IST

ICSE Class 12 Biology Exam: Section-wise paper structure

The ISC Class 12 Biology question paper is divided into four sections. Section A carries 20 marks with short-answer recall and application-based questions. Section B is worth 14 marks and focuses on application-based questions. Section C carries 21 marks and includes reasoning, analysis, and diagram-based questions, while Section D is for 15 marks and consists of diagram and explanation-based questions.

March 6, 2026 | 08:37 AM IST

ISC Biology paper 2026 today; how many to appear?

Around 1.5 lakh students will appear for the ISC Class 12 exam board exam 2026 for Biology subject today.

March 6, 2026 | 08:20 AM IST

ISC Biology paper today; know exam pattern

According to the exam pattern, the question paper is divided into four sections—A, B, C, and D. Section A is compulsory and usually consists of multiple-choice questions and very short-answer questions.

Sections B, C, and D include a combination of short-answer, long-answer, and case-study-based questions, which aim to assess students’ conceptual understanding as well as their ability to apply biological concepts.

To pass the ISC Class 12 Biology Exam 2026, candidates must secure at least 40% marks separately in both the theory and practical components.

March 6, 2026 | 07:25 AM IST

ISC Biology paper today

The Council for Indian School Certificate Examination (CISCE) will conduct the ISC Biology paper today in the second shift. The biology paper will be held from 2 pm to 5 pm.

March 6, 2026 | 07:00 AM IST

ISC Biology Exam Today 2026: Things to carry

For the ISC 12th Biology exam, candidates should only carry the required stationery items, admit card, and school ID for verification purposes.

March 6, 2026 | 06:01 AM IST

ISC Biology Unofficial Answer Key 2026

Once the ISC 12th Biology exam is over, students will have access to ISC Biology Unofficial Answer Key 2026 to evaluate their responses and calculate their expected marks.

March 6, 2026 | 05:00 AM IST

ICSE Class 12 Biology Answer Key: Where to access?

The ISC Biology question paper will consist of four sections given below.

  • Section A is 20 marks and consists of short-answer recall and application-based questions.
  • Section B will carry 14 marks and consists of application questions.
  • Section C is of 21 marks based on reasoning, analysis, and diagram-based answers
  • Section D will be of 15 marks based on diagrams and explanation-based questions.

March 6, 2026 | 04:00 AM IST

ICSE Class 12 Biology Answer Key: Where to access?

The ICSE Class 12 Biology answer key 2026 will be available online through the experts’ official YouTube channels, websites, and other online portals.

March 6, 2026 | 03:00 AM IST

ISC 12th Biology Exam 2026: Answer Key soon

Several educational institutions and subject experts will publish the ISC Biology Answer Key 2026 soon after the exam concludes. Students can use this answer key to estimate their expected scores before the official results are announced.

March 6, 2026 | 02:00 AM IST

ISC Class 12 Biology exam today

ISC Class 12 Biology paper will be held tomorrow from 2 pm onwards. Students are advised to reach their respective exam centres at least 40–45 minutes before the exam begins. Students will be given additional 15 min to read the question paper.

March 6, 2026 | 01:34 AM IST

ISC Class 12 Biology exam today

ISCE will conduct the ISC Class 12 Biology paper tomorrow from 2 pm onwards. Students will be given 15 minutes of additional reading time before the exam begins.

March 6, 2026 | 12:32 AM IST

ISC Class 12 biology exam 2026 pattern, passing marks

According to the exam pattern, the question paper is divided into four sections—A, B, C, and D. Section A is compulsory and usually consists of multiple-choice questions and very short-answer questions.

Sections B, C, and D include a combination of short-answer, long-answer, and case-study-based questions, which aim to assess students’ conceptual understanding as well as their ability to apply biological concepts.

To pass the ISC Class 12 Biology Exam 2026, candidates must secure at least 40% marks separately in both the theory and practical components.

March 5, 2026 | 11:40 PM IST

ISC 12th English Paper 2026: How was the difficulty level?

The ISC Class 12 English Language (Paper 1) was considered moderately difficult. The proposal writing and comprehension sections were relatively easy, while the composition and short grammar/vocabulary questions were of moderate difficulty. The paper mainly focused on writing skills (worth up to 25 marks) and unseen passages that included summary-writing tasks.

Overall, the paper followed the prescribed syllabus closely, combining direct recall, analytical thinking, and creative writing. Some sections were lengthy, making time management important for students. Well-prepared candidates were generally able to attempt most sections confidently.

March 5, 2026 | 10:45 PM IST

ISC Class 12 Exam 2026: How many will appear?

Around 1.5 lakh students will appear for the ISC Class 12 exam in 2026.

March 5, 2026 | 10:15 PM IST

CISCE Board Exam 2026 Guidelines

Students appearing for the CISCE Board Exam 2026 must follow the important guidelines listed below:

  • Candidates should reach their assigned examination centres at least 40–45 minutes before the exam begins.
  • Arriving early helps complete the verification process smoothly and prevents any last-minute issues.
  • Students must bring their hall ticket and school ID card to gain entry into the examination hall.
  • Wearing the school uniform is compulsory.
  • Casual or informal clothing is strictly not permitted under any circumstances.

March 5, 2026 | 09:30 PM IST

ICSE Board Exam 2026: Passing marks

To pass ICSE Class 10, students must secure passing marks in at least five out of the six subjects they appear for. They must also obtain passing grades in SUPW (Socially Useful Productive Work) and Community Service, which are assessed internally. The minimum passing requirement for each subject is 33%.

CISCE revises Class 10, 12 board exam rules; scraps compartment exam, key changes

March 5, 2026 | 08:47 PM IST

ISC PYQ of Biology 2026

Solving previous years’ questions (PYQs) for ISC 12th biology board exam 2026 and sample papers will help students identify frequently repeated topics and understand the overall difficulty level of the exam questions. It improves answer-writing skills by helping students understand the appropriate level of detail required for 2-mark, 3-mark, and 5-mark questions.


March 5, 2026 | 08:15 PM IST

ISC Class 12 examination 2026 guidelines

Students will be given 15 minutes to read the question paper before the exam begins. Candidates are required to reach the examination hall at least 30 minutes prior to the start of the exam.

The ISC Class 12 examination 2026 will start at 2:00 PM and will last for 3 hours. Students are strictly advised not to bring books, papers, mobile phones, smartwatches, or any wireless devices into the examination hall.

March 5, 2026 | 07:45 PM IST

ISC Class 12th board exam time table 2026

The ISC Class 12th board exam time table is given below.

Friday, March 6

Biology - Paper 1 (Theory)

Saturday, March 7

Fashion Designing - Paper 1 (Theory)

Indian Music - Hindustani - Paper 1 (Theory)

Monday, March 9

Mathematics

Wednesday, March 11

Business Studies

Friday, March 13

Bengali, Gujarati, Hindi, Kannada, Khasi, Mizo, Malayalam, Nepali, Odia, Punjabi, Tamil, Telugu, Urdu, Modern Armenian, Tibetan, Arabic, Sanskrit

Saturday, March 14

Art Paper 2 (Drawing or Painting from Nature)

Monday, March 16

Physics - Paper 1 (Theory)

Wednesday, March 18

Physical Education

Monday, March 23

Economics

Biotechnology - Paper 1 (Theory)

Wednesday, March 25

Sociology

Friday, March 27

Computer Science - Paper I (Theory)

Saturday, March 28

Art Paper 4 (Original Imaginative Composition in Colour)

Monday, March 30

Political Science

Wednesday, April 1

Elective English

Hospitality Management

Saturday, April 4

Art Paper S (Crafts ‘A’)

Monday, April 6

Geography


March 5, 2026 | 07:18 PM IST

ISC 12th Biology Question Paper 2026 PDF

After the exam concludes, students often look for the ISC 12th Biology Question Paper 2026 PDF along with its answer key to verify the answers they attempted and calculate their expected scores.

March 5, 2026 | 07:00 PM IST

Important topics for ISC 12th Biology paper 2026

The list of important topics for ISC 12th Biology 2026 are as follows.

Chapter/Topics

Sub‑topics

Reproduction in Organisms

Sexual and asexual reproduction, reproductive health, related biological processes

Genetics and Evolution

Mendelian genetics, monohybrid and dihybrid crosses, inheritance patterns, linkage, mutations, basic evolution concepts

Biotechnology

Tools and techniques of biotechnology, applications in medicine, agriculture, and industry

Human Health and Diseases

Common diseases, immunity, vaccination, basic epidemiology concepts

Ecology and Environment

Ecosystems, biodiversity, environmental issues, conservation strategies

Human Physiology

Circulatory, digestive, respiratory, excretory, nervous, and endocrine systems


March 5, 2026 | 06:30 PM IST

ISC Class 12 Biology exam 2026 tomorrow

ISC Class 12 Biology theory paper carries a total of 70 marks, and questions are framed from the 5 major units of syllabus. Candidates can check the unit-wise weightage for the ISC Class 12 Biology theory exam given below.

Unit

Total Weightage

Reproduction

16 Marks

Genetics and Evolution

15 Marks

Biology and Human Welfare

14 Marks

Biotechnology and Its Applications

10 Marks

Ecology and Environment

15 Marks

Total

70 Marks


March 5, 2026 | 06:00 PM IST

ISC Class 12 Biology exam pattern 2026

The ISC Class 12 Biology exam generally consists of two components:

  • Theory (Written Paper): 70 Marks
  • Practical (Laboratory Work and Viva): 30 Marks

March 5, 2026 | 05:33 PM IST

ISC 12th biology exam tomorrow

CISCE will conduct the 12th biology exam from 2 pm to 5 pm.

March 5, 2026 | 05:00 PM IST

ISC Class 12 Biology 2026: Exam tomorrow at 2 pm

The Council for the Indian School Certificate Examinations (CISCE) will conduct the ISC Class 12 Biology exam on March 6 in the afternoon session starting at 2 pm. Students are advised to reach their examination centres at least 40–45 minutes before the exam begins to complete verification procedures.

March 5, 2026 | 05:00 PM IST

ISC Biology Exam 2026: Passing criteria and marking scheme

The Biology exam will include a 70-mark theory paper and a 30-mark practical component. To pass the ISC Class 12 Biology exam, students must secure at least 40% marks separately in both theory and practical sections

March 5, 2026 | 05:00 PM IST

ISC Biology Question Paper 2026: Exam pattern, sections

The ISC Biology question paper will be divided into four sections—A, B, C and D. Section A will be compulsory and is expected to include multiple-choice and very short answer questions, while the remaining sections will contain short-answer, long-answer and case-study-based questions.