Q. An Antigen is
✅ Correct Answer: (C)
The stimulus for antibody formation
Explanation:
An antigen is any foreign substance (such as bacteria, viruses, toxins, or pollen) that enters the body and triggers the immune system to produce antibodies.
Therefore, an antigen acts as the stimulus for antibody formation.
Meanings of the options:
- (A) The result of Antibody ❌ – Incorrect.
- (B) The opposite of antibody ❌ – Incorrect.
- (C) The stimulus for antibody formation ✅ – Correct.
- (D) The residue of an Antibody ❌ – Incorrect.
Quick Revision:
- Antigen → Triggers the immune response.
- Antibody → Protein produced by B-lymphocytes to fight the antigen.
Correct Answer: (C) The stimulus for antibody formation ✅
Explanation by: Jyoti
An antigen is any foreign substance (such as bacteria, viruses, toxins, or pollen) that enters the body and triggers the immune system to produce antibodies.
Therefore, an antigen acts as the stimulus for antibody formation.
Meanings of the options:
- (A) The result of Antibody ❌ – Incorrect.
- (B) The opposite of antibody ❌ – Incorrect.
- (C) The stimulus for antibody formation ✅ – Correct.
- (D) The residue of an Antibody ❌ – Incorrect.
Quick Revision:
- Antigen → Triggers the immune response.
- Antibody → Protein produced by B-lymphocytes to fight the antigen.
Correct Answer: (C) The stimulus for antibody formation ✅