The GATE Grind

GATE 2024 ES – Question 15

Environmental Microbiology · Microbiology and Health · 1 mark · Multiple choice

Tuberculosis is predominantly caused by which of these organisms?

  1. Entamoeba histolytica
  2. Salmonella typhi
  3. Mycobacterium bovis
  4. Bacillus cereus

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Correct answer: (C) Mycobacterium bovis

Explanation

Among the choices,**Mycobacterium bovis, C** belongs to the tuberculosis complex and causes bovine and zoonotic tuberculosis. The source wording needs qualification: most human tuberculosis is caused by Mycobacterium tuberculosis, which is absent from the options. E. histolytica causes amoebiasis, S. typhi typhoid, and B. cereus commonly foodborne illness. The official choice is retained without misidentifying the predominant human pathogen.

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