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