Looking for Bio Technology Sample Papers for Class 12? These CBSE papers are made for 2026-27, and follow the 2026 exam pattern closely.
- Made by senior teachers, covering the full Class 12 syllabus.
- You get detailed marking and full solutions for each Bio Technology paper.
- Has the latest CBSE question style, including case-based questions for Class 12 Bio Technology.
Solved Bio Technology Papers for Class 12
These Class 12 Bio Technology solved papers show you the real paper structure. Practicing them helps you find the questions that matter most. Download the free PDFs below and work on your speed before your exams.
Get Class 12 Bio Technology Papers in PDF
|
CBSE Class 12 Biotechnology - Question Paper Blueprint & Marking Schemes Review section-wise weightage, model papers, recombinant DNA protocols, and step-wise mark allocations. 📋 CBSE Class 12 Biotechnology Exam Pattern & Marks Distribution:
• Total Marks: 70 (Theory) + 30 (Practical) = 100 Marks.
• Time Allowed: 3 Hours. • Question Paper Structure: Divided into multiple sections covering Recombinant DNA Technology, Protein Engineering, Plant and Animal Biotechnology. • Question Breakdown: → Section A (1 Mark each): Multiple Choice Questions and Assertion-Reasoning types → Section B (2 Marks each): Very Short Answer Questions → Section C (3 Marks each): Short Answer Questions → Section D (4 Marks each): Case-based Questions → Section E (5 Marks each): Long Answer Questions with internal choices Sample 2-Mark Question (Very Short Answer): State the role of restriction endonucleases in recombinant DNA technology. Name the first restriction endonuclease discovered.
Step-wise Marking Scheme:
• Role (1.5 Marks): Restriction endonucleases act as molecular scissors that inspect DNA sequences and cut them at specific recognition sites. • Name (0.5 Mark): Hind II is the first restriction endonuclease whose recognition sequence was isolated. Sample 5-Mark Question (Long Answer): Explain the steps involved in Polymerase Chain Reaction (PCR). Describe the role of thermostable DNA polymerase in this technique.
Marking Allocation:
1. Denaturation step: Heating target DNA at high temperature to separate strands (1 Mark). 2. Annealing step: Cooling to allow primer binding (1 Mark). 3. Extension step: Synthesis of new DNA strands using DNA polymerase (1 Mark). 4. Role of Thermostable DNA Polymerase (Taq polymerase): Survives high denaturation temperatures without denaturing, ensuring continuous amplification cycles (2 Marks). 📌 Evaluation Criteria followed by Board Examiners in Biotechnology:
• Technical Precision: Use correct scientific names of enzymes, vectors, and host organisms.
• Process Flowcharts: For techniques like downstream processing or gene cloning, drawing neat block diagrams adds immense presentation value. • Precise Terminology: Ensure accurate steps and parameters are mentioned for lab techniques like electrophoresis or PCR. |
| Sample Paper Set 01 |
| Sample Paper Set 01 |
| Sample Paper Set 01 |
| Sample Paper Set 02 |
Free study material for Bio Technology
Before starting preparing for Bio Technology by Solving Sample Papers, You should follow our step-by-step procedure in order to improve your performance in CBSE Board examination. The Following steps are prepared by experienced teachers at StudiesToday-
1- Syllabus of Class 12 Bio Technology: The very first step is to get the full Syllabus of Bio Technology for Class 12 which has been developed and issued by CBSE and NCERT for upcoming Examination. By the analysis of the whole syllabus you will understand the details about all topics and the weight-age of marks for each chapter and topic of Bio Technology.
2- NCERT Books for Class 12 Bio Technology: After understanding the syllabus, you need books to start preparing for Exams. Here at StudiesToday we provide all NCERT Books for Class 12 Bio Technology, which are free to download in pdf format.
3- NCERT Solutions for Class 12 Bio Technology: NCERT books have questions to solve at the end of each chapter, for these questions we provide NCERT Solutions for Class 12 Bio Technology which help students to understand each chapter individually.
4- Study Materials for Class 12 Bio Technology: Few more things you need for better performance in Exams are Revision Notes, Worksheets, VBQs, MCQs and HOTs for Class 12 Bio Technology.
5- Question Papers for Class 12 Bio Technology: We also provide previous years Question papers for Class 12 Bio Technology with solutions for better understanding of exam patterns and help in revision of the entire course.
We provide Study Materials and Educational content which is prepared by experienced teachers based on the latest Curriculum of CBSE and NCERT.
FAQs
You can download the latest Bio Technology sample papers for Class 12 for free from StudiesToday.com. Our papers are updated as per 2026-27 year and follow blueprint issued by CBSE.
Yes, Class 12 Bio Technology model papers are designed with the latest 50% competency based weightage which includes Case-study questions, Assertion-Reasoning, and MCQs.
Every sample paper for Class 12 Bio Technology on our website comes with teacher-verified answers. These solutions follow the CBSE marking scheme with answers structure for maximum marks.
Solving guess papers under a 3 hour timer helps Class 12 students understand time management and identify weak areas. It is best to reduce exam anxiety and get familiar with the latest Bio Technology question paper design.
Yes, all Class 12 Bio Technology sample papers and model test sheets are provided in a mobile-friendly PDF format for download.
Yes, wherever applicable, we provide CBSE Class 12 Bio Technology sample papers in multiple languages, including English and Hindi to help students from all mediums.