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Questions and Answers
What is the basis for serotyping or antigenic typing of E. coli?
What is the basis for serotyping or antigenic typing of E. coli?
- Flagellar antigen H only
- Somatic antigen O, flagellar antigen H, and capsular antigen K (correct)
- Somatic antigen O only
- Capsular antigen K only
What is the role of surface antigens in E. coli virulence?
What is the role of surface antigens in E. coli virulence?
- They are involved in motility
- They cause endotoxic activity
- They protect the organism (correct)
- They help in genetic recombination
What is the function of somatic antigen O in E. coli?
What is the function of somatic antigen O in E. coli?
- Protects the organism
- Facilitates genetic recombination
- Provides motility
- Causes endotoxic activity (correct)
