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Comparison of the mutational spectra in DH10B and MG1655. A bar graph shows the distribution of cycA mutations obtained in MG1655 and DH10B. Rectangles within each bar represent point mutations (black), IS150 insertions (hatched), and other IS insertions (IS1, IS2, IS5, and not determined) (white). The rectangle representing deletions in MG1655 is not visible, and no deletions were detected in DH10B.
