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Fig. 1. CpG island location in several germ cell-specific genes. The genomic
structures from -2 kb to +2 kb relative to the transcription start site are
depicted for Dazl, Mvh, Scp3 and Tnap. For each gene, exon 1
(exon 1a for Tnap) is surrounded by a CpG island defined as
previously described (Gardiner-Garden and
Frommer, 1987). Black boxes represent exons, gray bars represent
CpG islands. The regions amplified for bisulfite analysis are indicated by
black bars below each CpG island.