DNA methylation patterns at imprinted and non-imprinted gene promoters in <i>Ku80^−/−</i> mutant mice.

<p>DNA methylation status in liver at specific CpG sites within promoters of imprinted genes of <i>WT</i> (a) and <i>Ku80^−/−</i> (b) mice liver (both 10 months of age). Each tickmark represents specific CpG sites within the imprinted promoter and each column represents the methylation status for each animal.