The chemical reactions and pathways resulting in the formation of a pyrimidine ribonucleotide, a compound consisting of nucleoside (a pyrimidine base linked to a ribose sugar) esterified with a phosphate group at either the 3' or 5'-hydroxyl group of the sugar. (Gene Ontology, GO_0009220)
23 genes participating in the pyrimidine ribonucleotide biosynthetic process biological process from the curated GO Biological Process Annotations dataset.