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you performa throat culture on blood agar. After incubation, you notice several B-hemolytic colonies. what would...

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Biology

you performa throat culture on blood agar. After incubation, younotice several B-hemolytic colonies. what would be the best way todetermine whether the organism was Staphylococcus aureus orStreptococcus pyogenes, both which B-hemolytic?

a)look for motility

b)check for sensitivity to novobiocin

c)streak a MacConkey plate

d)streak a mannitol salts agar plate

Answer & Explanation Solved by verified expert
3.7 Ratings (426 Votes)
The MacConkey agar is used for the differentiation and isolation of gram negative and Pseudomonas speciesStreptococcus pyogenes is a gram positive bacteria so cannotbe used for the    See Answer
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