Recombinant DNA
The deliberate modifications of an organism's genetic information by directly changing its nucleic acid content is a subject matter of

protein engineering
genetic engineering
population genetics
microbiology

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Recombinant DNA
Electroporation is

the process of combining foreign DNA to an electrically charged vector molecule
the process of separating charged molecules through a gel maintained in an electric field
the process of multiplication of the cells
the application of high voltage pulses

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Recombinant DNA
The advantage of using DNA polymerases from thermophilic organisms in PCR is that

the DNA polymerases of these bacteria never make mistakes while replicating DNA
All of these
the DNA polymerases of these bacteria are much faster than those from other organisms
the DNA polymerases of these bacteria can withstand the high temperatures needed to denature the DNA strands

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