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- X inactivation starts at the X inactivation center(XIC) and spreads throughout the chromosome. X失活开始于XIC，然后传播到整条染色体。
- X inactivation center XIC
- X inactivation center(XIC) X失活中心[在lyon学说基础上, 人们推测X染色体上存在一个特异性失活位点, 即X失活中心, 此中心可能产生一个失活信号, 关闭了X染色体上几乎所有基因的转录]
- The methylation of histone H3-K27 was proved to be linked to several silencing phenomena including homeotic-gene silencing, X inactivation and genomic imprinting. 组蛋白H3第27位赖氨酸的甲基化与同源盒基因沉默、X染色体失活、基因印记等基因沉默现象有关；
- We use x as the symbol for an unknown quantity. 我们用x表示一个未知数。
- He moved the table over to the center of the room. 他把桌子移到房间中心。
- The land is destined for a new shopping center. 这块地已被划作为营建一个新购物中心之用。
- His activities in London center around this spot. 他在伦敦的活动以这个地点为中心。
- The strikers paraded through the city center. 罢工队伍游行穿过市中心。
- Ms X has been named for the directorship/named as the new director. 某女士已被提名任董事职务[任命为新董事]。
- What does x represent in this equation? 这个方程式中的x代表什么?
- random X inactivation X染色体随机失活
- A system of roads radiates from the town center. 一个道路网从镇中心向四面八方伸展出去。
- X inactivation X染色体失活
- The new hospital will be sited at the city center. 新医院将座落在市中心。
- New York is a great financial center. 纽约是一个重要的金融中心。
- The center of the sun is exceedingly hot. 太阳的中心极其热。
- Our city is the industry center of the country. 我们城市是全国的工业中心。
- They made a detour to avoid the town center. 他们绕道而行,避开市中心。
- The Sunday Times ran an article headlined "The X Brothers". 《星期日泰晤士报》登载了一篇标题为"X兄弟们"的文章。
