A method 4, characterised in that {TAIL ~ the ds RNA} is isolated from {HEAD ~ P chrysogenum} 
A method 4 , characterised in that { TAIL ~ the ds RNA } is isolated from { HEAD ~ P chrysogenum }
OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD