这种现象主要在印迹基因和X染色体失活区域看到，这些区域中的启动子区的DNA甲基化导致了基因表达的抑制。
This phenomenon is mostly seen in imprinted genes and X-chromosome inactivation where DNA methylation of promoter regions leads to repression of gene expression.
这种现象主要在印迹基因和X染色体失活区域看到，这些区域中的启动子区的DNA甲基化导致了基因表达的抑制。
This phenomenon is mostly seen in imprinted genes and X-chromosome inactivation where DNA methylation of promoter regions leads to repression of gene expression.
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