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A student on a school trip started sneezing and wheezing soon after reaching the hill station for no explained reasons. But, no return to the plains, the symptoms disappeared. What is such a response called? How does the body produce it? - Biology

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A student on a school trip started sneezing and wheezing soon after reaching the hill station for no explained reasons. But, no return to the plains, the symptoms disappeared. What is such a response called? How does the body produce it?

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Solution

The responses such as sneezing and wheezing for no explained reasons is called allergy. The substance against which the immune system show such exaggerated response are termed as allergens. Body produces IgE type of antibody against allergens as a response. Most common example of such allergens are pollen grains, dust etc.

Concept: Pre-fertilization in Plant: Structure and Events - Stamen, Microsporangium and Pollen Grain
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