From about 2 8 units of at least one nucleic acid polymerase, preferably Taq DNA polymerase, is then added to the reaction mixture and the mixture is treated according to {HEAD ~ the normal procedure} for {TAIL ~ the polymerase chain reaction} 
From about 2 8 units of at least one nucleic acid polymerase , preferably Taq DNA polymerase , is then added to the reaction mixture and the mixture is treated according to { HEAD ~ the normal procedure } for { TAIL ~ the polymerase chain reaction }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL