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Recombinant DNA

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

Phage
Cosmid
YAC
Plasmid

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Recombinant DNA
A short molecule containing 2-20 nucleotide is

mononucleotide
oligonucleotide
vector
plasmid

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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
gel electrophoresis
blotting
photoreactivation

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Recombinant DNA
The piece of equipment, that introduces DNA into cells via DNA-coated microprojectiles is known as

inoculating needle
DNA probe
laser
gene gun

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Recombinant DNA
In genetic engineering, a chimera is

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

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

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

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