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