The chemical reactions and pathways resulting in the formation of any of a group of substances that are released on excitation from the axon terminal of a presynaptic neuron of the central or peripheral nervous system and travel across the synaptic cleft to either excite or inhibit the target cell. (Gene Ontology, GO_0042136)
17 genes participating in the neurotransmitter biosynthetic process biological process from the curated GO Biological Process Annotations 2015 dataset.
