11. It is a positive-stranded RNA virus classified in the family Arteriviridae. 12. In RNA viruses , homologous recombination can be either precise or imprecise. 13. Positive stranded rna virus transcription is the method of transcription. 14. Ten Norovirus particles; this RNA virus causes winter vomiting disease. 15. For this reason, these viruses are called positive-sense RNA viruses . 16. A significant percentage of newly emerging viruses are RNA viruses . 17. Double-stranded RNA viruses are not as well-studied as other classes. 18. This group of RNA viruses colonize the virulent and produce the same disease symptoms. 19. Because HIV is an RNA virus , it mutates incredibly quickly. 20. Influenza viruses have a relatively high mutation rate that is characteristic of RNA viruses .
