Use the information below as background for the following questions.
Immunodeficiencies may be genetic in origin. Two examples of these are Bruton's agammaglobulinemia, an X-linked disorder, and DiGeorge syndrome, caused by a deletion from chromosome 22. Bruton's results in underdeveloped B cells, while DiGeorge syndrome results in a missing or seriously underdeveloped thymus.
-Which of the following could prevent the appearance of the symptoms of an allergy attack?
A)blocking the attachment of the IgE antibodies to the mast cells
B)blocking the antigenic determinants of the IgM antibodies
C)reducing the number of helper T cells in the body
D)reducing the number of cytotoxic cells
E)reducing the number of natural killer cells

Question

Quizplus · Accepted Answer

Allergic reactions involve the attachment of IgE antibodies to mast cells, causing the release of histamine and other inflammatory molecules. Blocking this attachment will prevent the symptoms of an allergy attack.

Use the Information Below as Background for the Following Questions