伊丽莎白·布莱克本和杰克·卓斯塔克发现,由于端粒上有独特的DNA序列,从而能防止染色体的退化。
Elizabeth Blackburn and Jack Szostak discovered that a unique DNA sequence in the telomeres protects the chromosomes from degradation.
佩奇博士说:“自然选择塑造了Y染色体,50年来,我们为Y染色体的退化争论不休,自然选择论更是加剧了这种争论。
“Natural selection is shaping the Y and keeping it vital to a degree that is really at odds with the idea of the last 50 years of a rotting Y chromosome, ” Dr. Page said.
合众国的最高法院已经退化变质,约翰·马歇尔和约瑟夫·斯托里那训练有素的法律推理已是历史,现在只会写作幸运曲奇中的神秘格言体。
The Supreme Court of the United States has descended from the disciplined legal reasoning of John Marshall and Joseph Story to the mystical aphorisms of the fortune cookie.
退化铁素体是由棒状的亚单元组成,每个亚单元的直径约为1 - 2微米,长度为几微米。
The degenerate ferrite consists of rod-like subunits, each several micron in length and 1-2 micron in diameter.
而品质性状的烘干率和淀粉率的变化和其它性状变化不一致,即C1群体退化不严重,C2提高但没有达到C0水平。
Results of selection showed that after a slightly degradation of C1, C2 had the improvement but they had not reached the level of C0.
对于板壳问题,共有三种数值模拟方案:线性或非线性的板壳理论、退化连续体方案和直接三维连续体方案。
There are three approaches in numerical simulation of plate and shell structures: plate and shell theory approach, degenerated continuum approach, direct three-dimensional(3D) continuum approach.
瑞典卡罗林斯卡医学院表示,这三位科学家解决了生物上的一个重大问题:染色体在细胞分裂时怎样避免退化。
The Karolinska Institute in Sweden said the three scientists have solved a major problem in biology: how chromosomes are protected against degradation during cell division.
此外,他们会密切观察斯科特的染色体端粒——这是位于染色体终端,防止染色体退化的部分——在国际空间站的这一年中的表现。
In addition, they will take a close look at how Scott's telomeres - the end portion of a chromosome that protects it against deterioration - reacted to his year aboard the ISS.
AT M基因突变可导致共济失调毛细血管扩张症(AT),一种常染色体隐性遗传病,该病特点是不协调的肌肉运动和神经退化。
Mutations in the corresponding ATM gene result in ataxia telangiectasia (at), an autosomal recessive disease characterized by uncoordinated muscle movement and neurodegeneration.
此种玻璃体凝缩与退化的现象称为“后玻璃体剥离”。
Such vitreous condensed and degradation of the phenomenon known as the "vitreous after stripping."
此种玻璃体凝缩与退化的现象称为“后玻璃体剥离”。
Such vitreous condensed and degradation of the phenomenon known as the "vitreous after stripping."
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