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LB/Amp/X-gal/IPTG plates:

Autoclave 500 ml LB agar, cool down to approx. 50 C, add under sterile conditions:

2.5 ml ampicillin (20 mg/ml) solution, final concentration: 100 ug/ml;

1 ml X-gal solution [2% (w/v) 5-bromo-4-chloro-3-indolyl-beta-D-galactoside,in dimethylformamide], final concentration 0.004%;

2.5 ml IPTG solution (100 mmol/l isopropyl-beta-D-thiogalactoside), final concentration 0.5 mmol/l.

Pour 25 ml each into a petri dishe and allow to solidify.
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