TOPIC: IMMUNOGLOBULIN 📌 PRACTICE QUESTION AND ANSWERQ.1. What is an antigen?Ans. Antigen is a substance which when introduced into an animal can induce a detectable immune response, which may be humoral, cellular or both.Q.2. What is the nature of an antigen?Ans. Most antigens are macromolecules of proteins though synthetic polypeptides and certain synthetic polymers like polyvinyl pyrolidone are known to behave like antigens.Q.3. What is meant by the term antigenic determinant and valence?Ans. The portion of the antigen molecule which binds to its specific antibody is called the “antigenic
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