The CBSE board examinations are approaching, commencing on February 15, 2025. Students of class 10 will sit for their exams from February 15 to March 18, while class 12 examinations will be held from February 15 to April 4. The Central Board of Secondary Education (CBSE) has released sample papers for both class 10 and 12, designed to aid students in their exam preparation and help them achieve excellent scores. In this article, we will explore the structure of the sample paper for the Biology subject for class 12, the types of questions that will be asked, and how students can effectively prepare.
CBSE Class 12 Biology Exam Pattern
As per the CBSE 12th board examination schedule, the Biology exam will take place on March 25, 2025, from 10:30 AM to 1:30 PM. This three-hour exam will be conducted for a total of 70 marks. The Biology paper is divided into five sections, comprising a total of 33 questions.
| Section | Marks per Question | Total Questions |
|---|---|---|
| Section A | 1 mark | 16 questions |
| Section B | 2 marks | 5 questions |
| Section C | 3 marks | 7 questions |
| Section D | 4 marks | 2 case study questions |
| Section E | 5 marks | 3 questions |
How to Download the CBSE Class 12 Biology Sample Paper
Students can easily access the Biology sample paper by following these steps:
- Visit the official CBSE website at cbseacademic.nic.in.
- Click on the link for class 12 sample papers for the year 2024-25 on the homepage.
- A new window will open displaying subject-wise sample papers.
- Select the link for the Biology sample paper and download it for your study.
Sample Questions from CBSE Class 12 Biology Paper
To help students prepare effectively, here are some sample questions:
- Explain the theory involved in the formation of colored and colorless colonies observed in a culture plate of Lactobacillus.
- Describe how the PCR technique can be utilized to amplify a small quantity of DNA template.
- Understand that bio-fertilizers are organisms that enrich the nutrient quality of soil. Discuss the role of three main sources of bio-fertilizers.
- Illustrate how biotechnology has aided in preventing nematode infections and increasing crop yield.
To download the official CBSE Class 12 Biology Sample Paper, please visit the CBSE website.
Related Study Materials: For more sample papers and preparation guides for other subjects, make sure to explore additional resources provided by CBSE.