Final answer:
Inhibitory synaptic signaling often involves the activation of glycine-gated Cl- channels, which allow Cl- ions to enter the cell and hyperpolarize the postsynaptic membrane, leading to an inhibitory effect.
Step-by-step explanation:
The gated ion channels involved in inhibitory synaptic signaling are glycine-gated Cl- channels. In inhibitory synaptic transmission, the binding of neurotransmitters to their respective receptors on the postsynaptic membrane leads to the opening of ion channels that cause hyperpolarization or inhibitory postsynaptic potentials (IPSPs). The neurotransmitters gamma-aminobutyric acid (GABA) and glycine are typically involved in this process; when GABA binds to its receptors, it opens Cl- channels allowing Cl- ions to enter the cell, hyperpolarizing the membrane. Similar action is seen when glycine, another inhibitory neurotransmitter, binds to its receptors, hence, amongst the given options, option (c) glycine-gated Cl- channels are associated with inhibitory signaling.