ABSTRACT
Key Notes
RNA is a polymer chain of ribonucleotides joined by 3′ 5′ phosphodiester bonds. The covalent structure is very similar to that for DNA except that uracil replaces thymine and ribose replaces deoxyribose.
RNA molecules are largely single-stranded but there are regions of self-complementarity where the RNA chain forms internal double-stranded regions.
Related topics
DNA structure (F1)
Transcription in prokaryotes (G2)
The lac operon (G3)
The trp operon (G4)
Transcription in eukaryotes: an overview (G5)
Transcription of protein-coding genes in eukaryotes (G6)
Regulation of transcription by RNA Pol II (G7)
