The Agrobacterium binds to the plant cell walls and {HEAD ~ transfers} defined DNA regions to {TAIL ~ the plant cell} 
The Agrobacterium binds to the plant cell walls and { HEAD ~ transfers } defined DNA regions to { TAIL ~ the plant cell }
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL