脱氧核糖核酸分子是由许多更小的分子组成的。
在一个染色体的脱氧核糖核酸分子中的核苷次序，其决定蛋白质合成物中氨基酸的次序。它是遗传的基础。
The sequence of nucleotides in the DNA molecule of a chromosome that specifies the amino acid sequence in the synthesis of proteins. It is the basis of heredity.
我们探索脱氧核糖核酸分子变异的原因：它可能由化学反应引起；也可能由物理作用引起。而物理作用引起的变异表现得更明显。
We have explored causes of the variation of deoxyribonucleic acid: It is probable that chemical reactions give rise to the variation or that physical interactions give rise to the variation.
对遗传信息进行编码。基因——长长的脱氧核糖核酸分子中的不连续的片段——把它们的序列转录成单线信使核糖核酸分子，核糖核酸又成为蛋白质的模板。
Genes — discrete segments of long DNA molecules — transcribe their sequences onto single-strand messenger RNA molecules, which then serve as templates for proteins.
构成生命体的许多关键分子都有一个特定的导向，或者说是旋向性：脱氧核糖核酸右旋，氨基酸左旋。
Many of the key molecules for life have a specific direction, or handedness: DNA twists to the right, amino acids to the left.
DNA（脱氧核糖核酸）的分子是一种双螺旋结构，酷似一架沿纵向扭曲的梯子。
The DNA molecule is a double helix, resembling a ladder that's been twisted along its length.
这确实已经相当小了，但可以说还没足够小到能测量出蛋白质分子间的缝隙、或是更靠近地观察DNA(脱氧核糖核酸)分子。
That's pretty small, but not small enough to, say, measure the gaps between proteins or look at a DNA molecule up close.
在这个解剖台上，研究人员还会附上基因的活动信息——一个细胞将基因翻译成RNA(脱氧核糖核酸已经经常会伴随有的蛋白质分子的过程)。
On this anatomical scaffold researchers will overlay information about gene activity-the genes a cell translates into RNA transcripts and then often protein molecules.
了解脱氧核糖核酸的分子结构开辟了一个研究的新领域。
Understanding the D-N-A molecule has opened up new areas of research.
氧化损伤，或氧化应激，出现在被称为自由基的高活性分子攻击和破坏细胞蛋白质，脂类(脂肪)和脱氧核糖核酸时。
Oxidant injury, or oxidative stress, occurs when highly reactive molecules called free radicals attack and damage cellular proteins, lipids (fats) and DNA.
利用探针分子通过电化学循环伏安法研究了鱼精脱氧核糖核酸与维生素b6的相互作用。
A research on the interaction between DNA and vitamin-B6 was conducted with an electrode modified by DNA.
众所周知，生命信息传递的物质基础是脱氧核糖核酸(又称DNA)，DNA分子的破坏势必造成生命过程的障碍，甚至中断。
It is well known that Deoxyribonucleic acid (also named DNA) is the transference base of information in the course of life. The destruction of DNA will cause the handicap of life, even discontinuity.
众所周知，生命信息传递的物质基础是脱氧核糖核酸(DNA)，DNA分子的破坏势必造成生命过程的障碍，甚至中断。
It is well known that deoxyribonucleic acid (DNA) is the transference base of information in the course of life. The destruction of DNA will cause the handicap of life, even discontinuity.
沃森一起为脱氧核糖核酸的分子结构提出了双螺旋这种 螺旋模型。
The DNA is made up of two pieces of nucleotide chains, which is double helix structure with complementary pairing of the bases and winding each other.
沃森一起为脱氧核糖核酸的分子结构提出了双螺旋这种 螺旋模型。
The DNA is made up of two pieces of nucleotide chains, which is double helix structure with complementary pairing of the bases and winding each other.
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