rna structure. adenine, cytosine, uracil, guanine, ribose, nucleotide, pyrimidine, purine, and sugar phosphate backbone

acid adenine anatomy backbone base biology biotechnology bond cell chemistry chromosome code concept cytosine design diagram dna double education gene genetic guanine health helix human hydrogen illustration infographic laboratory life medical medicine model molecular molecule nucleic nucleotide phosphate protein purine pyrimidine replication research ribose rna science scientific spiral strand structure sugar symbol technology thymine vector