Recombinant DNA Technology
In order to insert a foreign gene into a plasmid, both must __________

originate from the same type of cell
have identical DNA sequences
be cut by the same restriction enzyme
be of the same length

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Recombinant DNA Technology
A human cDNA library

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

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Recombinant DNA Technology
An example of a restriction fragment length polymorphism is

All of these
different length fragments of DNA resulting from loss or gain of a restriction site
an Eco RI cuts DNA at a different sequence than Hind III
cystic fibrosis results from a three base deletion in most cases but in other cases, other mutations are involved

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