I can't believe you can come back to this thread and type in yet more nonsense, this time about "aliens" (!!), without even the slightest acknowledgement of my reply (post 48) to this previous balderdash of yours:
What was the exact mutation that produced the resistance ? As an example, for an antibiotic to infect a bacteria, it has to get insdie the cell. This is done by on of the types of transporting protein in the membrane, which usually transports nutriments. So if the antibiotic chemically ressembles nutriment A, then the protein transporting A will also transport the antiobiotic. If, by a mutation, the protein transporter becomes none-functional, then the bacteria will become resistant to the antibiotic, but this will have been done through a loss of a function, that to be able to transport nutriment A in the cell.
Are you a random word generator? Have you no shame?