Streptococci causing dental caries:
Correct Answer: Streptococci mutans
Description: Ans. (b) Streptococci mutans S. mutans: It is member of viridans streptococci (a-hemolytic) which is pa of the normal flora of the oral cavity. It assumes bacillary form in acid environment. Can synthesize acid and large polysaccharide (adhesive dextran or levan) from sucrose.
Category:
Microbiology
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