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. Author manuscript; available in PMC: 2010 Dec 3.
Published in final edited form as: DNA Repair (Amst). 2009 Sep 26;8(12):1355–1362. doi: 10.1016/j.dnarep.2009.09.003

Figure 2. Spontaneous mutagenesis is enhanced in 12-month-old Polk−/− lung tissue, but not in the spleen.

Figure 2

Spontaneous mutation frequencies in the lung of (A) 12-month-old Polk−/− mice were elevated with respect to Polk+/+ animals. No statistically significant increases were observed in the (B) spleen. Error bars represent standard error of the mean (SEM): N=4–7.