Microbiology Question: Download Questions PDF
All of the following statements about the M-protein of Group A- Streptococci are correct EXCEPT?
Answer:
* A. The amino terminal portion (distal portion) is variable, accounting for over 80 distinct serotypes.
* B. M proteins allow streptococci to resist phagocytosis.
* C. Antibodies to M protein confer type-specific immunity.
* D. M protein is the major virulence factor of Group A streptococci
* E. M protein is the major constituent of the capsule of Group A streptococci
Correct Answer: E
* B. M proteins allow streptococci to resist phagocytosis.
* C. Antibodies to M protein confer type-specific immunity.
* D. M protein is the major virulence factor of Group A streptococci
* E. M protein is the major constituent of the capsule of Group A streptococci
Correct Answer: E
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