{TAIL ~ A transgene} which is {HEAD ~ the yH2Bm yeast artificial chromosome} having ATCC accession number PTA 2163 
{ TAIL ~ A transgene } which is { HEAD ~ the yH2Bm yeast artificial chromosome } having ATCC accession number PTA 2163
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH