What is the reason that some bacteria can gro | vedclass

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(A) The ability of some bacteria to grow in a medium containing streptomycin is due to $Natural 	ext{ } selection$. When a population of bacteria is

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Natural selection

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(A) The ability of some bacteria to grow in a medium containing streptomycin is due to $Natural 	ext{ } selection$. When a population of bacteria is exposed to an antibiotic like streptomycin, those individuals that possess a pre-existing mutation conferring resistance survive and reproduce, while others die. Over generations, the resistant population becomes dominant. This is a classic example of natural selection acting on genetic variation within a population.

What is the reason that some bacteria can grow in a medium containing streptomycin?

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