RNA serves as the genetic building block for viroids. To complete their life cycle, they must infect a host (plants).
Small, circular, single-stranded RNAs called viroids are contagious diseases. They don't have a protein coating like viruses do. All known viroids are angiosperm residents, and the majority of them cause diseases with vastly varying economic value to people.
Citrus exocytic, cucumber pale fruit, chrysanthemum stunt, and other plant diseases induced by viroids
A polymeric molecule known as ribonucleic acid is crucial for the coding, decoding, control, and expression of genes in a variety of biological processes.