In one embodiment, {HEAD ~ RNase} is added to digest {TAIL ~ RNA} released by the cells after lysis 
is added to digest
In one embodiment , { HEAD ~ RNase } is added to digest { TAIL ~ RNA } released by the cells after lysis
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL REL REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH