the incorporation rates of labeled orotic acid into poly ( a ) -containing mrna isolated from polysomes are represented as the specific radioactivity ( sr ) ( dpm/mg rna ) and the relative specific radioactivity ( rsr ) ( dpm/mg rna/dpm/mumoles of acid soluble uridine-5'-monophosphate ( ump ] .
C0035696
mrna
C0035668
rna