Biology
Grade-10
Easy

Question

Appearance of antibiotic-resistant bacteria is an example of ___.

  1. Adaptive radiation
  2. Transduction
  3. Pre-existing variation in the population
  4. Divergent evolution.

hintHint:

Appearance of antibiotic-resistant bacteria is an example of pre-existing variation in the population.

The correct answer is: Pre-existing variation in the population


    • Appearance of antibiotic-resistant bacteria is an example of pre-existing variation in the population.
    • When antibiotic is applied to a bacteria, the bacteria is supposed to die.
    • But in case of mutation in bacteria, the bacteria become resistant to antibiotic and the antibiotic does not work.

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