Cosuppression of {HEAD ~ an endogenous gene} using a full length cDNA sequence as well as {TAIL ~ a partial cDNA sequence} are known  
using
Cosuppression of { HEAD ~ an endogenous gene } using a full length cDNA sequence as well as { TAIL ~ a partial cDNA sequence } are known
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH