Examples of ligands are all of the following except?

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Multiple Choice

Examples of ligands are all of the following except?

Explanation:
A ligand is a molecule that binds to a larger molecule, such as a receptor or enzyme, to influence its activity. Hormones act as ligands by binding to specific receptors to trigger signaling. Neurotransmitters similarly bind receptors at synapses to convey signals. Many drugs exert their effects by binding to receptors or enzymes as ligands. DNA, however, is the molecule that can be bound or targeted by other ligands; it is not itself acting as a ligand in these signaling contexts. So DNA is not an example of a ligand.

A ligand is a molecule that binds to a larger molecule, such as a receptor or enzyme, to influence its activity. Hormones act as ligands by binding to specific receptors to trigger signaling. Neurotransmitters similarly bind receptors at synapses to convey signals. Many drugs exert their effects by binding to receptors or enzymes as ligands. DNA, however, is the molecule that can be bound or targeted by other ligands; it is not itself acting as a ligand in these signaling contexts. So DNA is not an example of a ligand.

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