Neco 2019 Biology Question 42
Practice objective / multiple choice question 42 from the 2019 Neco Biology examination.
A clinical specimen yields 150 colonies on MacConkey agar. Of these, 90 colonies are lactose fermenters (pink) and 60 are non‑fermenters (colorless). Among the lactose fermenters, 30 are indole positive and 60 are indole negative. Among the non‑fermenters, 45 are oxidase positive and 15 are oxidase negative. Which microorganism is most likely responsible for the infection?
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About This Question
This is Neco 2019 Biology Question 42. It is one of the objective questions from the 2019 Neco Biology examination.
Difficulty level: Hard .
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