3 . the androgenesis of a ilotetraploid hybrids in 2002 , the goldfish " s female nucleus were inacted by using uv rays to irradiate the eggs , the diploid s 2003年用失活的墨龙的卵子与四被体鱼的二倍体精子“受精” ，获得了82尾雄核发育实验鱼。
Deactivation can occur through a number of mechanisms , such as irreversible blockage of active sites , deposition of carbon , deposition of metals , deposition of salts , etc 有很多机理可引起失活，例如活性位发生不可逆转的堵塞、积碳、积金属、积盐等。
When ptch has been inactivated by mutation in nevoid basal cell carcinoma syndrome , smoothened is turned on continuously , providing a continuous signal to the cell to grow 基因由于突变而失活时，圆滑蛋白则不断地被激活，提供持续的基底细胞生长信号。
Abstract : objective : to relieve and even eliminate the pain of pulpitis in opalescent teeth with the sterilized eugenol cottonball after the blockade of the pulp devitalizer 文摘:目的：减轻或消除乳牙牙髓炎患者封失活剂后产生的剧痛，使治疗能顺利进行。
Inactivation of genes which involved in signal transduction and analyze the phenotypes of mutants all the mutants in this study were inactivated by inserting a resistance gene 信号转导相关基因突变体的构建及表型分析本研究全部通过插入失活获得突变体。
Residual carbons have also been collected from two industrial cfb boilers and a pilot cfb combustor , as well as from coal particles burning statically in open air 比表面积变化较小，与焦碳失活无关。中低温燃烧下，不同煤中存在的矿物质的催化作用不一样。
This year ' s nobel prize in medicine will go to three researchers who found a way to learn about the duties of individual genes 今年诺贝尔医学奖将会授予在研究个体基因方面有所发现的三名研究人员.他们发现了如何使实验动物体内的个体中特定基因失活，或失去作用。
Xist is an important gene wich is located in the xic ( x chromosome inactivation center ) region and is closely related to the x chromosome inactivation X染色体失活与位于“ x染色体失活中心” ( xic )上xist基因息息相关，主要表现在xist的转录产物通过包围一条x染色体使其沉默。
During this process , a series of modification appeared on the xi , which led to the formation of stable heterochromatin that can be inherited steadily in cell duplication 失活的染色体上面往往发生一系列的修饰，导致产生非常稳定的异染色质且能在细胞复制的过程中稳定遗传。
