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Induction of the lac operon by operator titration
| Genotype + plasmid | Medium supplement | β-Galactosidase units | % induction |
|---|---|---|---|
| WT + pBR322 | None | 1.79 ± 0.20 | 0 |
| WT + pBR322 | 1 mM IPTG | 3,827 ± 78 | 100 |
| WT + pBR322 | 0.4% lactose | 1,358 ± 37 | 35 |
| WT + pBR322-Oid | None | 302 ± 20 | 8 |
| WT + pUC19-Δα | None | 3,737 ± 20 | 98 |
