what's your favorite standard RNA nucleobase? disclaimer: i am fully aware that RNA and DNA have numerous other differences (like the extra hydroxyl group, their differential ability to fold into secondary structures as well as their catalytic abilities as ribozymes vs dnazymes, the numerous roles of non-coding RNA...) as well as surprising similarities (genomic RNA used by some viruses, double stranded RNA in both viral contexts and beyond...). this is a trend (please someone get the reference)