Carbenicillin is used to select for mutated or transformed cells that carry the ß-lactamase ( bla ) gene, which confers resistance to ampicillin (Amp or Amp R ) and carbenicillin. Carbenicillin is a semi-synthetic ampicillin analog that does not allow formation of satellite colonies. Typically,…

Kanamycin is used to select for mutated or transformed cells that are kanamycin resistant. In research labs, there are several commonly used kanamycin resistance genes (e.g., aph, ntpII , and aaC-aphD ). Typically, low-copy-number plasmids require less kanamycin than high-copy-number plasmids. …