A molecular technique in which DNA sequences between two oligonucleotide primers can be amplified is known as:
A) Southern blotting
B) Northern blotting
C) Polymerase chain reaction
D) DNA replication
In genetic engineering, a chimera is:
A) An enzyme that links DNA molecules
B) A plasmid that contains foreign DNA
C) A virus that infects bacteria
D) A fungi
Which of the following enzyme is used to covalently bond foreign DNA to a vector plasmid?
A) DNA polymerase
B) Restriction endonuclease
C) DNA ligase
D) DNA helicase
The advantage of using DNA polymerases from thermophilic organisms in PCR is that:
A) The DNA polymerases of these bacteria are much faster than those from other organisms
B) The DNA polymerases of these bacteria can withstand the high temperatures needed to denature the DNA strands
C) The DNA polymerases of these bacteria never make mistakes while replicating DNA
D) All of the above

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