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    Diagnostic Microbiology
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    Exam 18: Enterobacteriaceae
  5. Question
    An Organism That Appears Red with a Black Center on XLD
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An Organism That Appears Red with a Black Center on XLD

Question 1

Question 1

Multiple Choice

An organism that appears red with a black center on XLD agar is lactose-_____ and H₂S-_____.


A) positive;positive
B) positive;negative
C) negative;positive
D) negative;negative

Correct Answer:

verifed

Verified

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