Newcastle disease virus-specific RNA: hybridization-competition of the non-dissociable 35 S RNA with individual 18 S RNA species.

The non-dissociable fraction of Newcastle disease virus- (NDV-Y specific 35 S RNA competed efficiently with two individual 18 S RNA transcripts in hybridization-competition experiments with 50 S virion RNA. The third 18 S component could not be displaced from the hybrid by an excess of non-dissociable 35 S RNA.