Recombinant DNA
For gene probes to be useful they must

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

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Recombinant DNA
Agrobacterium tumefaciens is

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
a disease in humans that causes loss of sight

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Recombinant DNA
Vectors are

molecules that degrade nucleic acids
molecules that protect host cells from invasion by foreign DNA
molecules that are able to covalently bond to and carry foreign DNA into cells
molecules that help in replication

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