Primer extension is used toــــــــــــــــــــــ .
A)determine the transcriptional start site B)locate the binding of RNA polymerase C)determine the interaction of RNA and proteins D)generate primers for PCR
Reporter systems are most useful for ـــــــــــــــــــــ.
A)monitoring gene expression B)determining DNA-protein interactions C)identifying the product of biochemical reactions D)constructing large numbers of clones in bacteria