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Questions and Answers
What color are the colonies of E. coli on blood agar?
What color are the colonies of E. coli on blood agar?
- Purple
- Red
- White
- Gray (correct)
What is the gram stain result of E. coli?
What is the gram stain result of E. coli?
- Gram-positive
- Gram-negative (correct)
- Cannot be determined by gram staining
- Gram-variable
What is the optimal growth temperature for E. coli?
What is the optimal growth temperature for E. coli?
- 37°C (correct)
- 45°C
- 25°C
- 30°C
What type of organism is E. coli in terms of oxygen requirements?
What type of organism is E. coli in terms of oxygen requirements?
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On which culture media does E. coli produce moist colonies due to lactose fermentation?
On which culture media does E. coli produce moist colonies due to lactose fermentation?
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