Recombinant DNA
For gene probes to be useful they must

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

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Recombinant DNA
The Southern blotting technique depends on

similarities between the sequences of probe DNA and experimental DNA
the molecular mass of proteins
similarities between the sequences of probe protein and experimental protein
similarities between the sequences of probe RNA and experimental RNA

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Recombinant DNA
Agrobacterium tumefaciens is

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

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