Will the resistance of a bacteria increase after prolonged exposure to an antibiotic?

Pulse

New member
If I expose a bacteria culture to an antibiotic for let's say a month, will I notice a development in the resistance of this bacteria to this antibiotic? If not, how long will it take for a bacteria to acquire resistance under laboratory conditions?
pfeiffer, does that prove that resistence can be acquired after prolonged exposure to a certain antibiotic?
 
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