@riya - Gunah nhi vo mujhe na thode se paise chahiye xD
5rs. (^_^)
@krish - ye de dega xD
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In immunology, an antigen is a molecule or molecular structure, such as may be present on the outside of a pathogen, that can be bound by an antigen-specific antibody or B-cell antigen receptor. The presence of antigens in the body normally triggers an immune response.
Ye Khud lele mese , meko toh ye ghanta dega xD
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