Multiple choice

Which among the following statements regarding M. tuberculosis is false?

  1. M. tuberculosis is a genetically diverse bacterium.

  2. Humans are the only known reservoirs of M. tuberculosis.

  3. It does not retain any bacteriological stain.

  4. The rate of division of M. tuberculosis is extremely fast.

  5. Its cell wall is rich in lipids.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

M. tuberculosis divides every 15–20 hours, which is extremely slow compared to other bacteria, which tend to have division times measured in minutes (Escherichia coli can divide roughly every 20 minutes).

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