uridine monophosphate (ump, uridylic acid) nucleotide molecule. building block of rna. atoms are represented as spheres with

uridine uridin nucleoside rna ribonucleic acid uracil ribose ribofuranose phosphate monophosphate triphosphate uridylic uridylyl uridylate ump carbon hydrogen oxygen nitrogen phosphorus molecule atoms atomic model molecular compound composition chemical chemistry bond structure formula