Imprinting and Promoter Usage of Insulin-Like Growth Factor II in Twin Discordant Placenta
Figure 1
Polymorphisms and imprinting of the IGF-II gene in the placenta. (a) polymorphisms of IGF-II: 1 had type AA homozygosity; 4 had type BB homozygosity; 2,3,5,6 had type AB heterozygosity; and M, marker. (b) imprinting of IGF-II: 1, loss of imprinting AB; 2–4, normal imprinting A; 5, normal imprinting B; and M, marker.
