Which pa of bacteria is most antigenic ?: (A) Protein coat, (B) Lipopolysaccharide, (C) Nucleic acid, (D) Lipids
Answer is A. Ans. is d i.e., Lipids Proteins are most immunogenic, while lipids & nucleic acids are least immunogenic. Polysaccharides (carbohydrates) are less immunogenic than protein antigens, but are more antigenic than lipids & nucleic acids.