What is a hapten?

What is a hapten?

A complete antigen
A small molecule that can elicit an immune response only when attached to a larger carrier
A type of antibody
A type of T cell

What is a hapten?

Step 1: Understand that a hapten is a tiny molecule.
Step 2: Know that haptens alone cannot trigger an immune response.
Step 3: Learn that haptens need to attach to a larger molecule, called a carrier, to be recognized by the immune system.
Step 4: Remember that once attached, the hapten-carrier complex can stimulate an immune response.

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