Sergey V. Orlov Serge at serge.stud.pu.ru
Sat Sep 23 05:00:50 EST 1995

>Could anyone explain why we use IPTG instead of lactose in the induction of
>the lac promoter? I know we use lactose in the Mac Conkey agar plate.

Because IPTG is not hydrolysed by lacZ, and, therefore, its concentration
is not decreased during induction.
Sincerely, Serge Orlov
e-mail: serge at serge.stud.pu.ru

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