But we did not see this mutation in the NA of the1918 virus either.
不过,在1918年的病毒中,我们也没有发现这种突变。
The other mutation with a significant effect on virulence has been seen in the NA gene of two influenza virus strains that infect mice.
另一种对病毒毒性具有重要影响的突变,存在两种感染小鼠的流感病毒株的NA基因上。
The doublet nature of this and other lines in the na spectrum indicates a doubling of the expected number of states available to the valence electron.
钠光谱中的这条线以及其它线的双重性指出预期价电子可用的状态数是双重的。
In a criminal complaint filed by a Federal Bureau of Investigations agent, Captain Phillips describes Muse much differently than the na?ve, young boy his mother portrays him to be.
VOA: standard.2009.04.22
DNA goes to RNA, goes to protein, that's it, and that is the way it happens in simple organisms like bacteria.
NA转录成RNA接着翻译成蛋白质,仅此而已,而这仅是细菌那样的简单有机体中的机制
RNA polymerase is smart, it knows where it needs to go in order to make the copy of RNA that's required.
NA聚合酶很聪明,它知道该由什么位置介入,来转录所需要的RNA
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