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- heterogeneous nuclear ribonucleic acid
Sorry, no etymologies found.
However, even as generations of students beginning with the discovery of polyadenylate tracts in hnRNA in eukaryotes were learning of this distinction, we knew that all was not right with this.
Sehgal PB, Darnell JE, Tamm I (1976) The Inhibition by DRB (5,6 dichloro-1-beta-D-ribofuranosylbenzimida zole) of hnRNA and mRNA Production in HeLa Cells.