Figure 3From: Genes regulated by the Escherichia coli SOS repressor LexA exhibit heterogenous expressionMerged images of the phase contrast and fluorescence images of recA-gfp expression. A: Expression of recA-gfp gene fusion in RW118 and B: Expression of recA-gfp fusion in the isogenic recA defective RW464 showing heterogeneity in expression of the recA gene.Back to article page