CBSE Board Exams 2025 Live: Class 12 biology paper 'moderate'; analysis, answer key updates

As per the CBSE Class 12 passing criteria 2025, students are required to secure at least 33% marks overall to pass the board exams.

Aleena, student of VidyaGyan School found section A ‘tricky’. Aleena felt that scoring good marks would be challenging. In contrast, Vartika from the same school found the exam ‘very good’ and was satisfied with her performance.

Ananya Sharma, student of Seth Anandram Jaipuria School, Ghaziabad, found the CBSE Class 12 exam 'easy', questions were similar to those from internal school exams. She emphasized that effective time management allowed her to complete the CBSE Class 12 biology paper comfortably and even review her answers.

A total of 17,88,165 students are expected to appear for CBSE Class 12 board exams. The CBSE Class 12 board exams 2025 will end on April 4.

Here is the pattern of CBSE Class 12 biology question paper 2025

Rumors about the CBSE 2025 paper leak circulated on social media, but the board dismissed these claims calling them 'baseless.' Currently, there are no reports or speculations regarding the CBSE Class 12 biology paper leak 2025.

There were not out of syllabus topics in CBSE Class 12 biology paper 2025. The CBSE Class 12 biology paper 2025 was conducted from 10:30 to 1:30 pm.

Section A, comprising MCQs, was a good mix of understanding, application and hots questions. Q5 was a kind of question, rarely asked, made it evident that this year paper covered every nook and corner of the syllabus.

There are around 7,842 centres across India and 26 centres overseas from where the exams are being held.

The 'Genetics and Evolution' chapter in CBSE Class 12 Biology carries the highest weightage, accounting for 20% of the total marks.

Around 42 lakh students from 8,000 schools in India and abroad are appearing for the Class 10 and 12 board exams this year.

CBSE Class 12 biology paper marking scheme is given below-

• Section-A has 16 questions of 1 mark each Section-B has 5 questions of 2 marks each
• Section- C has 7 questions of 3 marks each
• Section- D has 2 case-based questions of 4 marks each
• Section-E has 3 questions of 5 marks each.

The CBSE Class 12 Biology exam took place in a single shift from 10:30 am to 1:30 pm.

Many students expressed relief after completing the exam. While some found the diagram-based questions challenging, others mentioned that the MCQs and theory-based questions were straightforward

As per feedback from teachers, the CBSE Class 12 biology paper 2025 maintained clarity, adhered strictly to the syllabus, and was not lengthy.

The CBSE Class 12 results 2025 are expected to be declared in May.

The board will conclude the CBSE Class 12 board exams on April 4.

The CBSE will conduct the next Class 12 board exam for the economics subject tomorrow, March 26.

Students need to obtain at least 33 marks to be able to clear the CBSE Class 12 board Biology exam.

The CBSE Class 12 biology question paper 2025 comprised of 70 marks.

Various coaching institutes will also upload CBSE Class 12 biology answer key 2025. Students will be able to calculate their probable scores using the CBSE Class 12 biology answer key 2025.

Ananya Sharma, student of Seth Anandram Jaipuria School, Ghaziabad, found the CBSE Class 12 Biology exam 'easy', as many questions were similar to those in her school's internal exams. Effective time management helped her to complete the paper on time and even review her answers.

As per Hema Malini, PGT Biology at JIRS, Bengaluru, the CBSE Class 12 Biology paper 2025 was 'not lengthy'. Malini says, "Another important factor that contributed to the paper’s effectiveness was its appropriate length. It was neither too lengthy nor too short, allowing students to manage their time efficiently. The distribution of marks among different sections was appropriate, ensuring that students did not feel rushed while attempting the paper. A well-structured paper like this one helps students demonstrate their knowledge without being pressured by time constraints."

As per Hema Malini, PGT Biology at JAIN International Residential School (JIRS), Bengaluru, the CBSE Class 12 Biology exam 2025 was structured to ensure equal representation of all units, preventing any bias towards specific topics.

As per Hema Malini, PGT Biology at JAIN International Residential School (JIRS), Bengaluru, CBSE Class 12 Biology paper 2025 was 'moderate'. As per the subject expert, CBSE Class 12 biology exam was 'well-balanced and a fair assessment of the syllabus'.

The CBSE Class 12 Biology question paper 2025 carried 70 marks.

The CBSE Class 12 biology exam analysis will be updated soon. The CBSE Class 12 biology paper analysis will provide insights on exam difficulty level, weightage and type of questions. 

The CBSE Class 12 Biology answer key 2025 will be shared by various coaching centres. Students will be able to calculate their expected scores with the help of CBSE Class 12 Biology answer key 2025.

The CBSE Class 12 biology paper 2025 ended at 1:30 pm. The CBSE Class 12 biology paper was held for a duration of 3 hours.

To pass the CBSE Class 12 board exams 2025, students must secure at least 33% marks in each subject and in the overall aggregate.

The CBSE 12th biology exams are being conducted today, the exam paper analysis will be provided soon after the completion of the exam.

Students can check the remaining Class 12 board exam 2025 from the table below.

CBSE has begun the Class 12 Biology exam 2025. The exam will be conducted for a duration of three-hour till 1:30 pm.

Students appearing for the CBSE Class 12 Biology exam should carry their admit card to the examination centres, along with school ID cards. They must also bring necessary stationery items like pens, pencils, and erasers, while ensuring they do not carry any prohibited electronic gadgets.

CBSE Class 12 Biology exam begins at 10:30 am.

CBSE Class 12 biology paper follows a structured marking scheme, with Section A testing quick recall and Section E challenging in-depth understanding.

• Section–A has 16 questions of 1 mark each
• Section–B has 5 questions of 2 marks each
• Section– C has 7 questions of 3 marks each
• Section– D has 2 case-based questions of 4 marks each
• Section–E has 3 questions of 5 marks each. 

The 'Genetics and Evolution' chapter in CBSE Class 12 Biology carries the highest weightage, accounting for 20% of the total marks.

Students can check the CBSE Class 12 biology exam pattern from the table below.

CBSE Class 12 Biology paper 2025 will be conducted for a duration of 3 hours from 10:30 to 1:30 pm. 

Key topics for CBSE Class 12 Biology exam 2025 include:

• Reproduction
• Genetics and Evolution
• Biology and Human Welfare
• Biotechnology and its Applications
• Ecology and Environment

CBSE will conduct the Class 12 Biology exam for a total of 80 marks, with students required to secure a minimum of 33 marks to pass the subject.

Students must carry their CBSE Class 12 admit card 2025 along with their school ID for smooth entry into the exam hall.

The Central Board of Secondary Education (CBSE) is conducting the Class 12 Biology board exam today, March 25. The exam will be held from 10:30 am to 1:30 pm.