Biotechnology UPSC Questions

Biology

Biotechnology MCQ Questions


7.
With reference to recent developments regarding ‘Recombinant Vector Vaccines’, consider the following statements:
1. Genetic engineering is applied in the development of these vaccines.
2. Bacteria and viruses are used as vectors.
Which of the statements given above is/are correct?
UPSC - 2021
A.
1 only
B.
2 only
C.
Both 1 and 2
D.
Neither 1 nor 2
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ANSWER :
C. Both 1 and 2
8.
What characteristic of DNA fragments allows them to be separated by gel electrophoresis?
A.
Their color
B.
Their stickiness
C.
Their electric charge
D.
Their shape
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ANSWER :
C. Their electric charge
9.
What is the name of the enzyme that forms hydrogen bonds between sticky ends of DNA?
A.
DNA polymerase
B.
Restriction endonuclease
C.
DNA ligase
D.
Chitinase
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ANSWER :
C. DNA ligase
10.
Which vector is commonly used for cloning genes into plants?
A.
Retrovirus
B.
pBR322
C.
Ti plasmid
D.
Plasmid DNA
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ANSWER :
C. Ti plasmid
11.
Which technique is used to amplify DNA in vitro?
A.
Electrophoresis
B.
PCR
C.
Micro-injection
D.
Biolistics
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ANSWER :
B. PCR
12.
Bollgard I and Bollgard II technologies are mentioned in the context of
UPSC - 2021
A.
clonal propagation of crop plants
B.
developing genetically modified crop plants
C.
production of plant growth substances
D.
production of biofertilizers
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ANSWER :
B. developing genetically modified crop plants