Question

how does antimicrobial resistance occur?
rank the steps from first to last.
there is genetic variation within a
population of bacteria.
a bacterium with the antibiotic-
resistant gene survives the antibiotic
treatment.
the antibiotic becomes ineffective in
controlling the infection.
the antibiotic-resistant bacterium
reproduces, resulting in many bacteria
with the antibiotic-resistant gene
antibiotic treatment changes the
environment.

Explanation:

Antibiotic resistance occurs through a process of natural selection. First, there is genetic variation within a population of bacteria. Then, antibiotic treatment changes the environment. A bacterium with the antibiotic - resistant gene survives the antibiotic treatment. The antibiotic - resistant bacterium reproduces, resulting in many bacteria with the antibiotic - resistant gene. Finally, the antibiotic becomes ineffective in controlling the infection.

Answer:

1. There is genetic variation within a population of bacteria.
2. Antibiotic treatment changes the environment.
3. A bacterium with the antibiotic - resistant gene survives the antibiotic treatment.
4. The antibiotic - resistant bacterium reproduces, resulting in many bacteria with the antibiotic - resistant gene.
5. The antibiotic becomes ineffective in controlling the infection.