Biotechnology - Recombinant DNA
Exercise "I never think of the future. It comes soon enough."
- Albert Einstein
11.
Which of the following is not commonly used as vector?
A. Artificial chromosome B. Cosmid C. Fungi D. Plasmid
Answer: E
Explanation:
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12.
A short molecule containing 2-20 nucleotide is
A. plasmid B. vector C. oligonucleotide D. mononucleotide
Answer: D
Explanation:
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13.
Enzymes that recognize and cleave specific 4 to 8 base pair sequences of DNA are
A. DNA ligase B. helicases C. restriction endonucleases D. DNA gyrase
Answer: A
Explanation:
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14.
Which of the following vector can maintain the largest fragment of foreign DNA?
Answer: E
Explanation:
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15.
Charged molecules are separated based on varying rates of migration through a solid matrix when subjected to an electric field. This technique is known as
A. photoreactivation B. gel electrophoresis C. autoradiography D. blotting
Answer: B
Explanation:
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