Over the past several decades, natural selection has caused populations of Staphylococcus aureus (an infectious wound bacterium) to evolve resistance to most antibiotics. If antibiotic use were stopped, what would you predict would happen to these S. aureus populations? The frequency of resistant forms will continue to increase in the population They will likely become extinct without the presence of the antibiotic They will likely stop mutating and developing new resistance mechanisms The proportion of non-resistant forms in the population is likely to increase The resistance gene will disappear from the population rapidly

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