When someone with a genetic predisposition to an allergy is first exposed to the allergen, the body responds by producing large amounts of
A) mast cells.
B) the antibody IgE.
C) histamine.
D) the antibody IgG.

Question

Quizplus · Accepted Answer

When someone with a genetic predisposition to an allergy is first exposed to the allergen, the body responds by producing large amounts of the antibody IgE. This IgE binds to mast cells and basophils, causing them to release histamine and other inflammatory mediators upon subsequent exposure to the allergen.

When Someone with a Genetic Predisposition to an Allergy Is