can you tell me one way how this acid is different from dna?
Unlike DNA, their structures do not consist of long double helices, but rather collections of short helices packed together into structures akin to proteins.
RNA
Unlike DNA, their structures do not consist of long double helices, but rather collections of short helices packed together into structures akin to proteins.

what nitrogenous bases are found in a molecule of rna (ribonucleic acid) UNANSWERABLE when was this acid first found? 1959 and by whom? Severo Ochoa as he researched on any other things? Yes, he researched "Classical Physiology".
wiki:25651074
RNA [SEP] Comparison with DNA
Like DNA, most biologically active RNAs, including mRNA, tRNA, rRNA, snRNAs, and other non-coding RNAs, contain self-complementary sequences that allow parts of the RNA to fold and pair with itself to form double helices. Analysis of these RNAs has revealed that they are highly structured. Unlike DNA, their structures do not consist of long double helices, but rather collections of short helices packed together into structures akin to proteins. In this fashion, RNAs can achieve chemical catalysis (like enzymes). For instance, determination of the structure of the ribosome—an RNA-protein complex that catalyzes peptide bond formation—revealed that its active site is composed entirely of RNA.