Principles and Process of Biotechnology - Genetic Engineering (Recombinant DNA technology) NEET Questions

Biology - Biotechnology and Its Applications

Principles and Process of Biotechnology - Genetic Engineering (Recombinant DNA technology) MCQ Questions


1.
Recombinant DNA technology was first developed by:
A.
Stanley Cohen and Herbert Boyer
B.
Hargobind Khorana
C.
Paul Berg and Arthur Kornberg
D.
Watson and Crick
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ANSWER :
A. Stanley Cohen and Herbert Boyer
2.
The first restriction endonuclease isolated was:
A.
HaeIII
B.
EcoRI
C.
BamHI
D.
HindII
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ANSWER :
D. HindII
3.
Restriction endonucleases are also called:
A.
Genetic scalpels
B.
Cellular scissors
C.
Molecular scissors
D.
DNA needles
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ANSWER :
C. Molecular scissors
4.
In the name EcoRI, 'R' stands for:
A.
Reverse
B.
Strain RY13
C.
Recombinant
D.
Restriction
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ANSWER :
B. Strain RY13
5.
Palindromic sequence in DNA refers to a sequence that reads:
A.
Different on both strands
B.
Only A-T base pairs
C.
Same in both strands in 5'→3' direction
D.
Same forward and backward on a single strand
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ANSWER :
C. Same in both strands in 5'→3' direction
6.
Restriction enzymes that cut DNA leaving overhanging stretches are said to produce:
A.
Sticky ends
B.
Cohesive blunt ends
C.
Blunt ends
D.
Smooth ends
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ANSWER :
A. Sticky ends