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प्रश्न
Differentiate between antigens and antibodies.
अंतर स्पष्ट करें
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उत्तर
| Aspect | Antigens | Antibodies |
| Definition | It is a foreign substance that enters the body and triggers an immune response. | It is a protective protein produced by the body to fight against antigens. |
| Nature | These are usually proteins or polysaccharides found on the surface of pathogens. | These are Y-shaped proteins known as Immunoglobulins (Ig). |
| Function | It acts as a target or a signal for the immune system to start working. | It binds to the antigen specifically to neutralize or destroy it. |
| Origin | Antigens usually come from outside the body, such as bacteria, viruses, or pollen. | Antibodies are produced inside the body by B-lymphocytes (plasma cells). |
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