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Discussion

The motility of Vibrio cholerae seen under a hanging drop preparation is described as ________.

  • A.tumbling motility
  • B.darting motility
  • C.gliding motility
  • D.twitching motility

Answer: D

Correct answer: darting motility

The single polar flagellum drives the organism in rapid, shooting movements, described as darting or shooting-star motility. Tumbling motility is characteristic of Listeria, and the finding is inhibited by specific antiserum, which was long used as a rapid presumptive test.

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