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