when the poly ( a ) content of nuclear rna was determined by hybridization to poly [ 3h ] ( u ) or specific binding to oligo ( dt ) -cellulose , most of the increase ( 10-fold ) in poly ( a ) content of newly synthesized rna was associated with the euchromatin fractions , whereas the increase was less marked in the other subnuclear fractions .
C0035700
nuclear rna
C0035668
rna