Recombinant DNA
Which of the following enzyme is used to covalently bond foreign DNA to a vector plasmid?

DNA helicase
DNA polymerase
Restriction endonuclease
DNA ligase

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Recombinant DNA
Agrobacterium tumefaciens is

a disease in humans that causes loss of sight
a bacterium that can be used to introduce DNA into plants
a fungi that is used to produce antibiotics in large amounts
a disease in humans that causes loss of weight

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