[color=#444444]第一类观点担心基因决定论将减弱人们的决心。
[color=#444444]The first involves the fear that genetic determinism cheapens human volition.
与之相反，L -甲硫氨酸增加了甲基化水平，从而减弱了正常老鼠中糖皮质激素受体基因的表达，导致了恐惧、焦虑和对压力的强烈反应。
By contrast, L-methionine increased the level of methylation and thus reduced the expression of the gene in animals with loving mothers, and led to fear, anxiety and a heightened response to stress.
经证实，这种做法比期望要困难许多，因为如果一种疾病由多种基因致使，那么单一基因的讯号就不可避免地被减弱。
This has proved a lot harder than expected, because if lots of genes contribute to a disease, the signal from each is inevitably weakened.
但是近年来反对的声音开始减弱。许多美国农民已经表示，如果转基因小麦有助于提高产量和利润，他们将欢迎。
But some of that opposition has waned in recent years and many U.S. farmers have said they would welcome a genetically altered wheat if it helped them increase yields and profits.
现在，我们可以考虑开发减弱fto基因活性的药物，用作抗肥胖药。
We can now think about developing drugs that turn down the activity of the FTO gene as potential anti-obesity pills.
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.
如构建出突变体库，从中筛选出毒力减弱的副猪嗜血杆菌突变菌株，对研制出基因工程弱毒活疫苗具有重要意义。
So it's has great significance to construct the mutant storehouse and slecte the toxicity weak Hps mutant strain for developing the genetic engineering attenuated vaccine.
辐射增强，作物叶片类黄酮含量增加、叶绿素含量降低、光合作用减弱，同时UV - B辐射诱致基因活性变化，导致DNA损伤和蛋白质含量的改变。
Enhanced UV-B radiation could increase crops' flavonoid content but decrease their chlorophyll content and photosynthesis, induce gene change, and result in DNA damage and change of protein content.
而且，红藻氨酸盐诱导的Gamma节律信号可以被RAGE基因缺失或抗体阻断的方式减弱。
Moreover, the kainate-induced gamma oscillations were attenuated by the genetic deletion or antibody blockade of RAGE in vivo.
说明与小猾皮相比，大猾皮皮肤组织中有8.51%的基因增强或减弱表达，有2.28%的基因启动或关闭表达。
This means that compared to kid lambs, older lambs have 8.51% gene expressed difference in amount, and 2.28% new genes appeared or closed in the skins.
HSPB2基因在化疗结束组表达增强，胶质瘤最小组表达最强，在复发组其表达减弱；
Expression of HSPB2 increased in gliomas after chemotherapy, its expression was highest when gliomas was smallest and decreased when gliomas recurred.
HSPB2基因在化疗结束组表达增强，胶质瘤最小组表达最强，在复发组其表达减弱；
Expression of HSPB2 increased in gliomas after chemotherapy, its expression was highest when gliomas was smallest and decreased when gliomas recurred.
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