Briefly, incorporation of a nucleoside analog in triphosphate form by HIV RT can be determined using {HEAD ~ native RNA templates} that contain {TAIL ~ all four bases} 
contain
Briefly , incorporation of a nucleoside analog in triphosphate form by HIV RT can be determined using { HEAD ~ native RNA templates } that contain { TAIL ~ all four bases }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL