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→Microevolution in Bacteria
== Microevolution in Bacteria ==
== Microevolution in Bacteria ==
Microevolution is the process by which bacteria may develop resistance to antibiotics. We regularly use antibiotics to stop bacterial infections. When a colony of bacteria is exposed to an antibiotic, the bacteria are likely to die if they do not have genes that produce molecules to inhibit the action of the antibiotic. If the survivors reproduce, the colony will contain mostly bacteria that have inherited resistance genes. A second application of the same antibiotic will not affect them.
Microevolution is the process by which bacteria may develop resistance to antibiotics. We regularly use antibiotics to stop bacterial infections. When a colony of bacteria is exposed to an antibiotic, the bacteria are likely to die if they do not have genes that produce molecules to inhibit the action of the antibiotic. If the survivors reproduce, the colony will contain mostly bacteria that have inherited resistance genes. A second application of the same antibiotic will not affect them.