In {HEAD ~ the preferred embodiments}, {TAIL ~ the resulting modified nucleotide} is amplifiable or can be modified subsequent to the amplification steps 
In { HEAD ~ the preferred embodiments } , { TAIL ~ the resulting modified nucleotide } is amplifiable or can be modified subsequent to the amplification steps
OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH