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