Multiple choice

Appearance of antibiotic resistant bacteria in a bacterial population is an example of

  1. divergent evolution

  2. convergent evolution

  3. pre-existing variation in the population

  4. inheritance of acquired characters

  5. adaptive radiation

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C Correct answer
Explanation

Appearance of antibiotic resistant bacteria in a bacterial population is an example of pre-existing variation in the population. The process of evolution of different species in a given geographical area starting from a point and literally radiating to other geographical areas or habitats is known as adaptive radiation.

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