CBSE Academic Class XII Biotechnology Sample Question Paper 2021-22

Name of the Board : Central Board of Secondary Education (CBSE)
Class : XII STD
Document Type : Sample Question Paper
Subject : Biotechnology
Term : 1 and 2
Year : 2021-22
Website : https://cbseacademic.nic.in/SQP_CLASSXII_2021-22.html

CBSE XII Biotechnology Question Paper

CBSE Students can download the Biotechnology Sample Question Paper Term 1 and 2 for the year 2021-22 from the website of CBSE Academic.

Related / Similar Question paper : CBSE Class XII Accountancy Sample Question Paper 2021-22

Sample Question Paper For CBSE XII Biotechnology

Section – A
Section – A consists of 24 questions. Attempt any 20 questions from this section. The first attempted 20 questions would be evaluated.

1. It is possible to introduce colours into DNA by
A. FISH
B. Microaaray
C. Nick translation
D. SNP

2. The protein that provides the body structure and protection to our bones is
A. collagen.
B. hemoglobin.
C. actin
D. myosin

3. Restriction enzymes were discovered by
A. W. Arber, H. Smith and D. Nathans
B. Paul Berg and Herbert Boyer
C. Annie Chang and Stanley Cohen
D. Kerry Mullis

4. Foreign DNA is directly introduced in to the recipient cell using a fine micro-syringe to transform it in the following technique-
A. Electroporation
B. Microinjection
C. Biolistics
D. Transfection

5. Which feature of the vectors provides flexibility in the choice of restriction enzymes?
A. MCS
B. Ori
C. Unique restriction enzyme recognition site
D. Size

6. Interferon β is used for the treatment of
A. Hepatitis C
B. Hepatitis B
C. Multiple Sclerosis
D. Chronic Granulomatous disease

7. In-situ activation of chymotrypsin takes place in the
A. jejunum.
B. duodenum.
C. ileum.
D. pancreas.

8. The enzymatic activity of subtilisin is contributed by
A. Ser 221, His 64 and Asp 32
B. Ser 32, His 221 and Asp 64
C. Ser 221, His 32 and Asp 64
D. Ser 32, His 64 and Asp 221

9. The most common type of restriction enzymes used in recombinant DNA technology are
A. Type I restriction enzymes
B. Type II restriction enzymes
C. Type III restriction enzymes
D. Type IV restriction enzymes

10. After n cycles, the number of DNA copies produced are-
A. n2
B. 2n
C. nx2
D. n÷2

11. Cosmids have the cos site of
A. BAC
B. YAC
C. Plasmid
D. Lambda

12. Following enzyme prevents self ligation
A. DNA ligase
B. Eco RI
C. DNA polymerase
D. Alkaline Phosphatase

13. Essential amino acids are those which
A. have to be obtained from food
B. can be made in our cells
C. can not be obtained from food
D. need not be essentially supplemented in the diet

14. Severe combined immunodeficiency is caused due to the absence of
A. prions.
B. chymotrypsin.
C. esterases.
D. adenosine deaminase.

15. Culture based approaches for detecting pathogens, as compared to PCR based assays are
A. faster, safer but less specific.
B. slower but safer and more specific.
C. slower, less safer and less specific.
D. slower, less safer but more specific.

16. A 100 Kb DNA fragment has to be cloned in a host cell. Which vector should be used for this experiment?
A. Plasmid
B. Cosmid
C. BAC
D. Bacteriophage lambda

17. The tripeptide present in whey that makes it a nutraceutical protein is
A. Glutathione
B. Kappa -casein
C. Hexokinase
D. Urease

18. Different proteins move differently in SDS –PAGE. It is due to varying
A. size
B. charge
C. isoelectric point
D. pH

Download CBSE XII Biotechnology Question Paper

Download CBSE XII Biotechnology Term 1 Question Paper Here :https://www.pdfquestion.in/uploads/pdf2022/40310-Term1.pdf

Download CBSE XII Biotechnology Term 2 Question Paper Here :https://www.pdfquestion.in/uploads/pdf2022/40310-Term2.pdf