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  3. Biology
  4. Assertion: IgG is the most abundant class of Igs in the body. Reason: IgG is mainly found in sweat, tears, saliva, mucus, colostrum and gastro intestinal secretions.

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Q. Assertion : $IgG$ is the most abundant class of Igs in the body.
Reason : $IgG$ is mainly found in sweat, tears, saliva, mucus, colostrum and gastro intestinal secretions.

Human Health and Disease

Solution:

$IgG$ is the most abundant class of $Ig$ in the body constituting approximately $80\%$ of the total $Igs$. It is found in the blood, lymph and intestine. $IgA$ is mainly found in sweat, tears, saliva, mucus, colostrum (first milk secreted by a mother) and gastrointestinal secretions.