teichoic acid biosynthetic process wall teichoic acid biosynthetic process wall teichoic acid biosynthesis GO:0070398 wall teichoic acid anabolism biological_process wall teichoic acid synthesis The chemical reactions and pathways resulting in the formation of wall teichoic acid, which is a major component of the cell wall of Gram-positive bacteria and typically consists of a polymer of glycerol-phosphate or ribitol-phosphate to which are attached glycosyl and D-alanyl ester residues and which is covalently linked to peptidoglycan. WTA biosynthetic process wall teichoic acid formation