this is not the place to ask that
The bacteria over time has built up a tolerance over the antibiotic , when this happens people usually make a different antibiotic that could be more affective for example how a person gets sore when they workout that muscle is building a tolerance to the stress you put it though therefore it grows
Answer
If we look at dry mass it is made by Carbon (45%) and oxygen (45%).
Can you re state the question it’s confusing
This could lead to an altering of the proteins tertiary structure which could make the protein non functioning (if cytosine didn’t attach to it) or give it a different function.