Recombinant DNA Technology
In gel electrophoresis, DNA molecules migrate from __________ to __________ ends of the gel.

basic ... acidic
negative ... positive
long ... short
positive to negative

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Recombinant DNA Technology
An expression vector

always contains an origin of replication
usually contains a gene that confers antibiotic resistance to the bacterial host
All of these
always contains DNA segments for the regulation of mRNA production

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