the synthetic polyribonucleotides adenylic acid ( poly a ) , uridylic acid ( poly u ) , cytidylic acid ( poly c ) , and inosinic acid ( poly i ) , whether single- or double-stranded ( poly a : u , poly i : c ) , can not replace mycobacterial ribonucleic acid ( rna ) in the production of a high immune response in cf-1 mice against tuberculous disease .
C0032413
poly i
C0032590
poly a