Unlike the human genome, however, the epigenetic code hasn't been mapped.
与人类基因组不同，这种次生的密码至今还未被绘出图谱。
But because the DNA code itself remained unchanged, Morris's team suggest that the changes in gene expression are epigenetic.
但由于DNA密码本身并无变化，莫里斯的团队认为这些基因表达的调整是表观的。
Such "epigenetic" chemical changes don't change the genetic code, but can mean that a gene's function is increased or decreased, or switched on or off.
这种“表现”化学变化并不改变遗传密码，但可能意味着一个基因的功能被加强抑或减弱、被打开还是被关闭。
Such "epigenetic" chemical changes don't change the genetic code, but can mean that a gene's function is increased or decreased, or switched on or off.
这种“表现”化学变化并不改变遗传密码，但可能意味着一个基因的功能被加强抑或减弱、被打开还是被关闭。
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