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1885 Microbiology

The sputum specimen of a 70 year old male was cultured on a 5% sheep blood agar. The culture showed the presence of a-haemolytic colonies next day. The fuher processing of this organism is most likely to yield –

AGram positive cocci in sho chains, catalase negative and bile resistant
BGram positive cocci in pairs, catalase negative and bile soluble
CGram positive cocci in clusters, catalase positive and coagulase positive
DGram negative coccobacilli catalase positive and oxidase positive
Microbiology
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