Effect of combining <i>msh2</i>Δ with <i>rad52</i>Δ on spontaneous mutagenesis.

<p>Spontaneous <i>CAN1</i> (<b>A</b>) and <i>his7-2</i> (<b>B</b>) mutation rates in the indicated strains are shown. The data are presented as medians with 95% confidence intervals. The relative mutation rates are above the corresponding bars. *, the strain was obtained by tetrad dissection.