然而,德国康士坦茨大学的Axel Meyer, Thomas Elbert以及他们的同侪们最近发表的研究报告指出,一种被称为 外因遗传 的现象很有可能就是这个问题的答案。
And if Drs Meyer and Elbert are right, it also suggests an alternative explanation for theinheritance of abusiveness.
如果Meyer和Elbert博士的结论是正确的,那它也为施虐遗传现象做出了另一个解释。
Epigenetics is a type of gene regulation that can be passed from a cell to its daughters. Themost common mechanism is methylation.
外因遗传是一种可以传给下一代细胞的基因调控过程,
This attaches methyl groups to either adenine orcytosine,
最常见的方式是通过甲基化作用来完成,该作用可以让甲基附着于腺嘌呤或胞嘧啶上。
two of the four chemical bases that form the alphabet of DNA, depending on the geneinvolved.
腺嘌呤和胞嘧啶是DNA四大成分其中之二,而到底附着于哪一个则取决于具体的基因。
The consequence is to inactivate the gene being methylated.
甲基化作用将使甲基化的基因失去活性。
In the case of stress, previous studies have suggested that methylation of the gene whichencodes glucocorticoid receptors is important.
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