<prompt> Regarding Neuroligins, false statement is:Hold the presynaptic and postsynaptic membranes togetherHelp in neurotransmitter releaseResponsible for synaptic specificity functionsMutation of these genes causes autisim spectrum disorder  <response>: Neurexins is a presynaptic cell adhesion molecule which binds with postsynaptic molecule Neuroligins Interaction between them holds the synapse together and also provide synaptic specificity. They are responsible for synaptic function but not for formation of synapse. These have no role in neurotransmitter release. Mutations in the genes encoding these causes autisim spectrum disorder ASD, Tourette syndrome, mental retardation, and schizophrenia. 