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Recombinant DNA

Recombinant DNA
Which of the following vector can maintain the largest fragment of foreign DNA?

Plasmid
YAC
Cosmid
Phage

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Recombinant DNA
Which of the following is not commonly used as vector?

Artificial chromosome
Cosmid
Fungi
Plasmid

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Recombinant DNA
The deliberate modifications of an organism's genetic information by directly changing its nucleic acid content is a subject matter of

genetic engineering
protein engineering
microbiology
population genetics

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Recombinant DNA
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

autoradiography
photoreactivation
blotting
gel electrophoresis

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Recombinant DNA
What is the normal role of restriction endonucleases in bacterial cells?

All of these
To degrade the bacterial chromosome into small pieces during replication
To produce RNA primers for replication
To degrade invading phage DNA

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Recombinant DNA
In genetic engineering, a chimera is

an enzyme that links DNA molecules
a fungi
a virus that infects bacteria
a plasmid that contains foreign DNA

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