Antibiotic resistance could occur because more antibiotic-resistant bacteria have survived, resulting in more offspring with this trait.
Antibiotic resistance is the resistance of bacteria to an antibiotic which earlier was used to kill it.
Antibiotic resistance occurs as a result of mutation in the gene of the bacteria or microorganism.
Also, overuse of antibiotics has caused antibiotic resistance in some bacteria in a population
This is because more antibiotic-resistant bacteria have survived, resulting in more offspring with this trait.
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