Can you get tetracycline over the counter

Components for a tetracycline off system are plasmid containing a tetracycline-dependent promoter upstream of your gene of interest tta expression plasmid components for a tetracycline on system are plasmid containing a tetracycline-dependent promoter upstream of your gene of interest rtta or tetr expression plasmid stable cell lines can be made that continuously express a system component e.
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