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Figure 3 | BMC Medical Genomics

Figure 3

From: Disease specific characteristics of fetal epigenetic markers for non-invasive prenatal testing of trisomy 21

Figure 3

Bisulfite direct sequencing of EP7. The asterisk represents CpG sites in EP7. Red and blue peaks in sequences indicate T and C bases, respectively. Red (T) and violet (H) characters represent unmethylated cytosine and heterozygous cytosine, respectively, in CpG sites. CpG sites of EP7 were completely unmethlylated in normal pregnant blood (A) and were hypermethylated in both normal placenta (B) and trisomy 21 placenta (C).

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