A) Salmonella enteric
B) Escherichia coli
C) Mycobacterium tuberculosis
D) Rhizobium meliloti
Correct Answer: C
Solution :
Mycobacterium tuberculosis is a Gram positive bacterium that appears violet after Gram staining. This is because it retains the colour crystal violet dye due to the presence of a thicker peptidoglycan layer.You need to login to perform this action.
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