Resistance of a Microorganism to an Antibiotic

Question

Resistance of a microorganism to an antibiotic:
A)means that the microorganism is susceptible to the antibiotic
B)can be acquired by genetic changes
C)leads to a disruption of cell membrane function
D)leads to a disruption of normal microflora

Accepted Answer

Resistance to an antibiotic can be acquired through genetic changes, such as mutation, transfer of plasmids containing resistance genes, or natural selection of resistant strains. Therefore, option B is the correct answer. Options A, C, and D are incorrect because resistance means that the microorganism is not susceptible to the antibiotic, it does not lead to a disruption of cell membrane function, and it may or may not lead to a disruption of normal microflora.