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- Like genetic mutations, epigenetic changes can pass from one generation of cells to the next. 就像基因突变一样,外遗传改变可以从这一代细胞传给下一代细胞。
- Aberrant methylation of DNA has been recognized as common epigenetic changes in human cancer. DNA异常甲基化是肿瘤常见的表观遗传学改变。
- Epigenetic changes are heritable changes to the regulation of a cell's genes, caused by extra molecules being attached to those genes. 即便最近对代际遗传现象的观察也显示:这一现象初看起来像是获得性遗传(这是达尔文派的一个禁忌),但可能并非如此。
- Says Feinberg, “It could be possible to screen for colon cancer risk by looking at the epigenetic changes in colon cells of healthy people. 研究人员指出,有关通过分析健康人结肠细胞中的表观遗传变化来确定结肠癌风险。
- Over the years, our laboratory has found that Zizania DNA introgression could induce a large number of genetic and epigenetic changes of the rice genome. 我们发现将菰的基因组DNA导入水稻中能诱导水稻基因组发生广泛的基因组变异和表观遗传变异。
- Over the years, our laboratory has found that Zizania DNA introgression could induce a large number of genetic and epigenetic changes in some introgression lines. 我们实验室的前期工作发现将菰的基因组DNA导入水稻中能诱导水稻基因组获得渐渗杂交系发生广泛的基因组变异和表观遗传变异。
- DNA methylation is the best studied of the epigenetic changes that influence the gene expression,and changes in genomic methylation patterns have been observed in many cancer cell lines. DNA甲基化是目前研究最为深入的表观遗传学机制,在肿瘤细胞中基因组甲基化模式常常发生改变;
- According to Perera, some evidence already exists that PAHs can lead to epigenetic changes in gene activity that cannot be identified by looking for breaks or disruptions in the genetic code itself. 裴里拉说,已经有些证据指出PAH所导致的基因活动产生外遗传变化,这些变化中并没发现有基因编码的缺失与改变。
- Genomic imprinting is a type of epigenetic change that causes one copy of a particular gene to be turned off, depending on its parental origin. “基因组印迹”属于后生变化之一,它能够关闭来自其亲本的某一特定基因的复制。
- Recently, it has been shown that germ-cells, too, are subject to epigenetic change, sometimes in response to environmental stimuli. 最近的研究显示,细菌的细胞同样受后天改变的影响,这些遗传变化有时是对外部环境刺激的反应。
- The nobility usually resist social changes. 贵族通常反对社会变革。
- They want to see substantial changes. 他们想看到实质性的变化。
- This city underwent great changes. 这座城市经历了巨大的变化。
- She varied her dress as fashion changes. 她的衣着随着潮流而变化。
- He rings the changes on his old story. 他总是以不同的方式讲他的老故事。
- She undertook responsibility for the changes. 她承担了这些变革的责任。
- , Great epigenetic changes take place during the spermatogenesis and fertilization, so it is very important for us to understand the epigenetic messages. 在精子发生及受精过程中表观遗传信息都发生了较大变化,因此了解精子的表观遗传学变化对研究后代遗传信息的改变至关重要。
- Recent changes in the tax law are clearly set out in the booklet. 在那本小册子里清楚地描述了近来税务法的变更情况。
- Appreciable changes in temperature. 可察觉到的温度上的变化
- The changes are an improvement in one way. 这些变从某种意义上说是一种进步。