To Produce an Allergic Reaction in Type I Hypersensitivity, the Antigen

question 57

Multiple Choice

To produce an allergic reaction in Type I hypersensitivity, the antigen

• A) must bind to mast cells.
• B) must bind to free IgE molecules.
• C) must just bind to IgE on mast cells.
• D) must bind to two neighboring IgE molecules on mast cells, crosslinking them.
• E) must bind to two neighboring IgM molecules on mast cells, crosslinking them.

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