Evolution of SnoRNA Genes and Function (IMAGE) Aarhus University Caption Left: Independent snoRNA gene unit, which is the predominant snoRNA gene organization in e.g. yeast. Middle: snoRNA hosted in the intron (red line) of a protein-coding gene. The green boxes indicate coding regions called exons. This is the predominant snoRNA gene organization in e.g. humans. Right: In the described study it was demonstrated that a specific intron-hosted snoRNA controls the splicing of its host transcript. Credit Søren Lykke-Andersen Usage Restrictions Image may be used only to illustrate the research described in the accompanying release. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.