Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Induction of β-glucuronidase activity (squares) at 1 mM lactose with strain AH1 (bglR mutant) (A) and SM101 (B) containing pAH2. OD (optical density at 600 nm) is shown as filled circles. Each chart shows a representative sample from two independent trials. The insets show an enlarged image of the first 20 min after induction.
