CBSE Class 12 Biotechnology Boards 2021 Sample Paper Solved

Read and download the CBSE Class 12 Biotechnology Boards 2021 Sample Paper Solved, designed by expert teachers according to the latest 2025-26 curriculum and examination pattern issued by CBSE, NCERT, and KVS. These Class 12 Bio Technology sample papers include detailed step-by-step solutions, helping students to practice and evaluate their performance against the most recent marking schemes.

Solved Sample Paper for Class 12 Bio Technology PDF

Our Class 12 Bio Technology model papers are important for understanding the weightage of different chapters and the difficulty level of expected questions. By solving these guess papers Class 12 students can identify weak areas and improve time management. We also suggest referring to our Class 12 Bio Technology Question Papers of previous years to further strengthen your exam preparation.

Class 12 Bio Technology Sample Paper with Solutions

SECTION A
 
1. What is a shuttle vector? 
 
2. Name the amino acids involved in the catalytic triad that regulates charge -relay system in the enzyme Chymotrypsin?
 
3. Specify one advantage of developing vectors based on M13. 
 
4. On which chromosome in humans, is the genetic defect for the Huntington disease located?
 
5. Name the red algae from which agar is obtained.
 
6. What is RFLP? 
 
7. What are nutraceutical proteins? 
 
8. What is the disadvantage of using primary animal culture as compared to secondary culture?
 
9. Counting genes and predicting their presence have proved to be laden with inaccuracies. Give reasons.
 
10. Which technique is used to confirm the detection of Sickle cell anaemia? Who developed this technique?
 
11. (i) Assertion – Native enzyme subtilisin is easily inactivated by bleach
Reason- Site directed mutagenesis at codon position 222 to replace methionine with alanine is found best in terms of activity and stability.
 
(a) Both Assertion and Reason are true and the reason is the correct explanation of the assertion
 
(b) Both Assertion and Reason are true but the reason is not the correct explanation of the assertion
 
(c) Assertion is true but Reason is false
 
(d) Both Assertion and Reason are false
OR
(ii) Assertion- OKT-3 is used to prevent graft rejection following kidney transplantation
 
Reason- OKT-3 blocks immune cells which attack foreign grafts.
 
(a) Both Assertion and Reason are true, and the reason is the correct explanation of the assertion
 
(b) Both Assertion and Reason are true, but the reason is not the correct explanation of the assertion
 
(c) Assertion is true but Reason is false
 
(d) Both Assertion and Reason are false
 
12. Composition of minerals like calcium and phosphorus in mg/ml is highest in-
 
(a) Cow milk
 
(b) Buffalo milk
 
(c) Human milk
 
(d) Goat milk
 
13. RefSeq is a curated database of:
 
(a) mRNA and proteins
 
(b) DNA and proteins
 
(c) DNA and m RNA
 
(d) DNA and t RNA
 
14. During isolation of streptomycin, clear broth is-
 
(a) discarded
 
(b) subjected to liquid-liquid extraction chromatography
 
(c) subjected to ultra filtration
 
(d) subjected to solubilization of proteins
 
Please click on below link to download CBSE Class 12 Biotechnology Boards 2021 Sample Paper Solved.

How to download CBSE Class 12 Biotechnology Boards 2021 Sample Paper Solved in PDF?

Students can easily download the CBSE Class 12 Biotechnology Boards 2021 Sample Paper Solved from our website to prepare for their upcoming examinations. To score high marks, it is important for Class 12 students to understand the exaact pattern as per which teachers design the question papers. We strongly suggest that you practice these latest sample papers for Bio Technology and solve different types of questions that are expected to come this year. You can downloadin PDF format so that you can practice offline. We also recommend that Class 12 students solve these papers actual exam conditions at home.

Why should you solve CBSE Class 12 Biotechnology Boards 2021 Sample Paper Solved?

Practicing these model papers has several benefits for Class 12 students:

  • New Question Bank: This set has fresh questions for Bio Technology which are different from previous years.
  • Exam Pattern Knowledge: Solving more sets will help you to understand the weightage of each chapter in Class 12 and also the type of questions asked.
  • Identify Weak Areas: Comparing your score in each set to find out topics in Class 12 Bio Technology for which you need hard work.
  • Speed and Accuracy: Attempting MCQ questions and long-form problems for Class 12 Bio Technology makes you faster and better and you will be able to finish your exam on time.

What should you do after solving CBSE Class 12 Biotechnology Boards 2021 Sample Paper Solved?

  1. Check Your Work: Match your answers with the solutions given by our teachers in the Bio Technology Sample Paper PDF.
  2. Learn from Mistakes: Class 12 students should focus on the questions which you solved incorrectly and understand the error.
  3. Revision: If you find a question difficult you shoul refer to NCERT book for Class 12 Bio Technology to understand concepts and then try the question again.
  4. Continuous Practice: Solve multiple sets of Bio Technology sample papers from studiestoday.com to build confidence before the CBSE exams.
Where can I download CBSE Class 12 Biotechnology Boards 2021 Sample Paper Solved in Pdf

You can download CBSE Class 12 Biotechnology Boards 2021 Sample Paper Solved from StudiesToday.com

How can I improve my scores by solving CBSE Class 12 Biotechnology Boards 2021 Sample Paper Solved

Regular practice of sample question paper given on studiestoday for CBSE Class 12 Biotechnology Boards 2021 Sample Paper Solved can help you to score better marks in exams

Are there any websites that offer free CBSE Class 12 Biotechnology Boards 2021 Sample Paper Solved

Yes, studiestoday.com provides all latest CBSE Class 12 Bio Technology Sample Papers with answers based on the latest format issued for current academic session

Are mock CBSE Class 12 Biotechnology Boards 2021 Sample Paper Solved available in multiple languages

Yes, mock CBSE Class 12 Biotechnology Boards 2021 Sample Paper Solved are available in multiple languages, including English, Hindi