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Practice questions on Biotechnology.

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21. The DNA of vector is cut into fragments by
A. plasmid
B. Auxin
C. Restriction endonucleases
D. Cytokinin
Explanation:
22. DNA ligase and restriction endonucleases are the basic tools required for
A. Genetic engineering
B. Physiology
C. Genetics
D. Totipotency
Explanation:
23. The most suitable vectors are
A. Yeast
B. Bacteriophages
C. Moulds
D. Algae
Explanation:
24. The technique which is useful in genetic engineering to introduce rDNA and other DNA fragments into higher plant cells in culture is
A. Protoplasmic fusion
B. Tissue culture
C. Hardening
D. Splicing
Explanation:
25. The rapid and cheaper method of propagating plants with desire qualities is
A. Molecular cloning
B. Gene cloning
C. Tissue cloning
D. Genetic cloning
Explanation:
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