Incorporation of the analog is expressed as a percent of {HEAD ~ incorporation} of {TAIL ~ the complementary deoxynucleotide} 
Incorporation of the analog is expressed as a percent of { HEAD ~ incorporation } of { TAIL ~ the complementary deoxynucleotide }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL