4.2 The statements below describe the different stages tha…
4.2 The statements below describe the different stages that led to Staphylococcus aureus (SA) becoming resistant to methicillin. Put them in the correct order by writing the numbers 1 to 4 in the boxes, where 1 represents the first stage. (2) Stage Order The gene for methicillin resistance became more common in the population over time [i] Individual bacteria with the mutated genes were more likely to survive and reproduce in a host being treated with methicillin. [ii] Random mutations in the DNA of Staphylococcus aureus (SA) led to it being less affected by methicillin. [iii] The gene for methicillin resistance was passed on to lots of offspring, who also survived and reproduced. [iv]
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