How Does Antibiotic Resistance Evolve In Bacterial Populations?

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How Does Antibiotic Resistance Evolve In Bacterial Populations?

A. Individual bacterial cells evolve in response to the presence of an antibiotic in their environment. These cells multiply. Eventually, antibiotic-resistant cells become common, which renders the antibiotic useless. B. Over time, bacteria become stronger and more able to resist antibiotics. C. In any population of bacteria, some individuals are more resistant to particular antibiotics and some individuals are less resistant. In the presence of an antibiotic, susceptible individuals die off. Over time, the frequency of resistant bacteria within the population increases. D. The presence of antibiotics in their environment triggers genetic changes in bacteria that are passed on to subsequent generations.
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C. In any population of bacteria, some individuals are more resistant to particular antibiotics and some individuals are less resistant. In the presence of an antibiotic, susceptible individuals die off. Over time, the frequency of resistant bacteria within the population increases.

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