Recombinant DNA
A molecular technique in which DNA sequences between two oligonucleotide primers can be amplified is known as

southern blotting
northern blotting
polymerase chain reaction
DNA replication

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Recombinant DNA
Vectors are

molecules that protect host cells from invasion by foreign DNA
molecules that degrade nucleic acids
molecules that help in replication
molecules that are able to covalently bond to and carry foreign DNA into cells

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