Antibiotic resistance is a major concern as microbes can rapidly develop resistance when antibiotics are not used appropriately. Which of the following examples best describes how this occurs?
Microbes respond to the presence of antibiotics by deliberately developing resistance mechanisms.
Exposure to too much of an antibiotic causes resistance.
Antibiotics are mutagenic. They cause mutations, like other mutagenic chemicals.
In any population of microbes, some individuals may have resistance genes. When exposed to an antibiotic, there is selection for the microbes that have these genes.