Recombinant DNA Technology
The transfer of antibiotic-resistant genes from genetically engineered bacteria to disease-causing bacteria __________ .

would be of no concern if it occurred.
seems unlikely
has occurred
can never occur

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Recombinant DNA Technology
A human cDNA library

contains DNA for virtually all of the human proteins in vectors
cannot be used to obtain human genes because it would be radioactive
contains DNA for specific human proteins
None of these

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