Assertion: virus's rna | /r/HasProperty | single-stranded
Facets:
value: single
type: DEGREE
Source sentences:
text: If the viruses contain single-stranded RNA as their genetic information, they are divided into positive-strand viruses if the RNA is of messenger sense (directly translatable into proteins) or negative-strand viruses if the RNA must be transcribed by a polymerase into mRNA.