Base sequences of polypurine regions of the RNA's of bacteriophages R17 and M12.
D002848:Chromatography, DEAE-Cellulose; D003090:Coliphages / Q000032:analysis*; D006863:Hydrogen-Ion Concentration; D009711:Nucleotides / Q000032:analysis; D011687:Purines / Q000032:analysis; D012367:RNA, Viral / Q000032:analysis*; D012260:Ribonucleases
D009711:Nucleotides; D011687:Purines; D012367:RNA, Viral; D012260:Ribonucleases