Access and download CBSE Class 12 Biotechnology Question Paper 2023 Solved, carefully designed as per the latest 2025-26 examination guidelines issued by CBSE, NCERT, and KVS. These Class 12 Bio Technology previous year question papers include detailed solutions, helping students to assess their performance and identify and improve key areas before the final exams.
Solved Bio Technology Question Papers for Class 12
Practicing these Class 12 Bio Technology question papers is the best way to understand the actual exam pattern and marking scheme. By solving these papers under timed conditions, Class 12 students can improve their speed and accuracy. Download the full CBSE Class 12 Biotechnology Question Paper 2023 Solved to begin your self-assessment today.
Bio Technology Class 12 Question Paper PDF with Solutions
SECTION A
1. Blue-White selection technique of transformants is based on insertional inactivation of :
(a) Leu2 gene
(b) LacZ gene
(c) X-gal gene
(d) Tet-r gene
Answer : b
2. Microbial source of Hind III restriction enzyme is :
(a) Haemophilus aegyptius
(b) Haemophilus influenzae
(c) Haemophilus haemolyticus
(d) Haemophilus felis
Answer : b
3. Which of the following statement is not correct about DNA sequencing by Sanger Method ?
(a) Primers can only be extended using the single strand DNA as template.
(b) Four ddNTPs ddATP, ddUTP, ddCTP and ddGTP are needed.
(c) DNA polymerase enzyme is needed.
(d) ddNTPs are added to terminate chain (DNA) extending.
Answer : b
4. Charge relay system operating in chymotrypsin enzyme consists of following amino acids at positions 57, 102 and 195 respectively :
(a) his-asp-ser
(b) his-lys-ser
(c) his-lys-asp
(d) lys-his-ser
Answer : a
5. Number of predicted genes is 6340 and 70% part of the genome codes for protein in :
(a) Yeast
(b) Caenorhabditis worm
(c) Arabidopsis weed
(d) Bacterium E. coli
Answer : a
6. SCID disease is caused by absence of enzyme :
(a) Adenosine synthase
(b) Adenosine deaminase
(c) Adenosine phosphatase
(d) Adenosine aminase
Answer : b
Please click the link below to download pdf file of CBSE Class 12 Biotechnology Question Paper 2023 Solved
| CBSE Class 12 BioTechnology Question Paper Delhi with Answers 2017 |
| CBSE Class 12 BioTechnology Question Paper Foreign with Answers 2017 |
| CBSE Class 12 Bio Technology Question Paper Set 1 2015 Delhi with Answers |
| CBSE Class 12 Bio Technology Question Paper Set 1 2015 Outside Delhi with Answers |
Important Practice Resources for Class 12 Bio Technology
CBSE Class 12 Biotechnology Question Paper 2023 Solved
To understand the types of questions asked in past examinations, it is very important for Class 12 students to solve the CBSE Class 12 Biotechnology Question Paper 2023 Solved provided above. You can easily download these past papers for Class 12 Bio Technology in PDF format for the last 10 years. By practicing these actual exam questions you will gain an understanding of the difficulty level and the variety of topics covered over the years. By solving these Previous Year Papers (PYPs) you will understand both descriptive and MCQ questions in your final tests.
Importance of solving CBSE Class 12 Biotechnology Question Paper 2023 Solved
Regularly practicing CBSE Class 12 Biotechnology Question Paper 2023 Solved is the best way to improve your score in Class 12 Bio Technology. These papers will give you details of the marking scheme and the paper structure used by the CBSE. By regularly attempting these under actual exam conditions at home, you can slowly improve your time management skills, which will help you to complete your Bio Technology paper within the allowed duration.
Benefits of downloading CBSE Class 12 Question Papers
Having the CBSE Class 12 Biotechnology Question Paper 2023 Solved in PDF format allows you to revise key concepts anywhere, even without an internet connection. These sets are a reliable tool to practice numerical problems and understand the correct approach to all types of answers. After solving the questions, you should compare your work with the solutions provided by our teachers. Along with these papers, students should always solve the Class 12 Bio Technology Sample Papers and MCQ tests on studiestoday.com for a complete revision.
The CBSE Class 12 Biotechnology Question Paper 2023 Solved is available for download on StudiesToday.com. It includes complete set with all sections so that Class 12 students can practice with the exact same paper that came in the CBSE exams.
Yes, the solutions for CBSE Class 12 Biotechnology Question Paper 2023 Solved are prepared by subject matter experts as per official marking scheme. Class 12 students will understand the structure of answers and 'step-marks' methodology Bio Technology.
Solving previous year papers like CBSE Class 12 Biotechnology Question Paper 2023 Solved is important to understand repeat themes and question difficulty levels of Bio Technology. It helps Class 12 students to test their time management skills too.
Yes, where applicable, CBSE Class 12 Biotechnology Question Paper 2023 Solved is available in both English and Hindi mediums. All students from Class 12 can access Bio Technology study material in their preferred language.
No, all previous year question papers on StudiesToday, including CBSE Class 12 Biotechnology Question Paper 2023 Solved, are provided free of charge in mobile-friendly PDF.