Recombinant DNA
For gene probes to be useful they must

be labeled in some manner to allow detection
both (a) and (b)
None of these
be large enough to contain gene-specific sequences

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Recombinant DNA
Electroporation is

the process of combining foreign DNA to an electrically charged vector molecule
the process of separating charged molecules through a gel maintained in an electric field
the process of multiplication of the cells
the application of high voltage pulses

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Recombinant DNA
Agrobacterium tumefaciens is

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

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Recombinant DNA
Bacterial cells protect their own DNA from degradation by restriction endonucleases by

not producing any restriction endonucleases
deleting all recognition sites from the genome
methylating the DNA at the sites that the enzyme recognizes
having anti restriction endonucleases

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