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. 2011 Sep;189(1):37–53. doi: 10.1534/genetics.111.130187

Figure 2 .

Figure 2 

Time course of a reversion experiment. Tester cells (108) were grown on minimal glycerol medium, washed, and plated on minimal lactose medium. Colony (Lac+) number increases over 6 days. The lawn of tester cells increases for 1 day and then remains constant.