Ampicillin is an antibiotic used to treat bacterial infections for cats. The correct dosage should be advised by the vet for the animal in question to prevent the wrong dosage. The information should be on the label of the medication.
The pGlo plasmid contains an ampicillin resistance gene. This gene encodes an enzyme, Î² lactimase, which enzymatically degrades ampicillin. Therefore, bacteria that take up the plasmid (transformants) become resistant to ampicillin.