Question:
Which one of the following does not belong to Enterobacteriaceae family?
Which one of the following does not belong to Enterobacteriaceae family?
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Enterobacteriaceae are always Gram-negative rods, while Staphylococci are Gram-positive cocci. This difference in Gram status makes identification simple.
Updated On: Jul 10, 2026
- Salmonella
- Staphylococcus
- Escherichia coli
- Shigella
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The Correct Option is B
Solution and Explanation
Step 1: Understanding the Concept:
The Enterobacteriaceae are a large family of Gram-negative, rod-shaped, facultatively anaerobic bacteria, many of which reside in the intestinal tracts of animals.
Step 2: Detailed Explanation:
- Salmonella, Escherichia coli, and Shigella are classic Gram-negative rod-shaped bacteria belonging to the family Enterobacteriaceae.
- Staphylococcus belongs to the family Staphylococcaceae.
It consists of Gram-positive, spherical (cocci) bacteria that arrange themselves in grape-like clusters.
Step 3: Final Answer:
Therefore, Staphylococcus does not belong to the Enterobacteriaceae family.
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