Such an assay may be particularly useful in view of {TAIL ~ evidence} that transgenes have {HEAD ~ a tendency} to become transcriptionally inactivated over the generations 
Such an assay may be particularly useful in view of { TAIL ~ evidence } that transgenes have { HEAD ~ a tendency } to become transcriptionally inactivated over the generations
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH