Figure 4: ( a ) Methylation status of Peg3 gene in paternal spermatozoa of control and ethanol-treated mice. ( b ) Methylation of the CpG site of Peg3's differentially-methylated region (DMR) in control and ethanol-treated groups. Results are mean ± s.e.m. of 10-12 mice. *P < 0.05; **P < 0.01, compared with control group.