ribose β-d-ribofuranose molecule, it is a pentose

acid atom biochemistry biological biotechnology carbohydrate carbon cell chemical chemistry chiral code cycle cyclic dna education enantiomer epimer formula furanose genetic genome hydrogen hydroxyl medicine molecular molecule monosaccharide nucleic nucleoside nucleotide oxygen pentose pharmaceutical pharmacology phosphoric ribofuranose ribonucleic ribose rna science structural structure sugar vector