the kinetics of accumulation of the known stable rna species ( 23s , 16s , and 5s rrna and trna ) in escherichia coli c122 were monitored by polyacrylamide gel electrophoresis of purified cellular rna , following termination of brief pulse labeling with ( 32 ) p-orthophosphate .
C0035701
rrna
C0035668
rna