双螺旋的

The Watson-Crick DNA double-heli-cal structure is a 10-fold C10 residues per turn double helix with antiparallel strands.

沃森，克里克DNA双螺旋- Cal的结构是一个10倍C10残留每转）与反平行双螺旋链。

Generally, B in the configuration closest cell's DNA conformation, it and the double helix model are similar. A-DNA and when RNA member double helix area as well as duplication forms the DNA-RNA hybrid molecule conformation is close. Z-DNA take the nucleotide dimer as the unit left-hand winding, its principal chain assumes the denticle the shape, therefore.

一般认为，B构型最接近细胞中的DNA构象，它与双螺旋模型非常相似。A－DNA与RNA分子中的双螺旋区以及转录时形成的DNA－RNA杂交分子构象接近。Z－DNA以核苷酸二聚体为单元左向缠绕，其主链呈锯齿形，故名。

That is why I spent the last four years immersed in the exploration of the double helix.

因此，这四年来，沉潜於双螺旋的探索。

Core particles ) Particles resulting from micrococcal nuclease digestion of nucleosomes, consisting of 140-bp DNA and the histone octamer of a nucleosome.

在真核生物中，双螺旋的 DNA 分子围绕一蛋白质八聚体进行盘绕，从而形成特殊的串珠状结构，称为核小体。

Moreover, the hybridization of PNA to DNA and RNA oligomers is uncompromised or even improved sequence selective.

肽核酸与双螺旋DNA更易形成三螺旋的另一个重要的特性是肽核酸与双螺旋结合时对序列的选择性非但没有降低反而有所升高。

Why are the florets in a sunflower arranged in a double spiral?

为什么向日葵中的小花是按照双螺旋的形状排列的呢？

Consequences of the rotation of DNA are illustrated in Figure 9.17 in the twin domain model for transcription. As RNA polymerase pushes forward along the double helix, it generates positive supercoils ahead and leaves negative supercoils behind. For each

超螺旋与转录还有更多的关系，RNA聚合酶转录DNA时，解链和复链同时也发生，如同Fig113中所示，这需要整个转录复合体绕DNA旋转或者DNA自己绕它的双链轴旋转，DNA旋转的后果如Fig11.19所示，图中是一个转录的双结构域模型，当RNA聚合酶沿DNA前移时，在酶前产生正双螺旋，酶后为负的双螺旋；每一个双螺旋转角被RNA跨越后都会在前面产生+1转角，后面产生-1转角。

Applied JT5-2 model saw tooth wave duplex jig to replace JT3-1 model single-chamber jig and spiral chutes which handle sand return from the double-spiral classifier,and achieved good index.

提出采用JT5-2型双室锯齿波跳汰机代替JT3-1型单室跳汰机，以及用来选别双螺旋分级机返砂的螺旋溜槽，取得了理想的指标。

Enzyme that separates the two strands of the double helix by breaking hydrogen bonds between the two strands.

通过打断两条链之间的氢键而将双螺旋的两条链分开的酶。

The Genetic Code and the Origin of Life celebrates the 50th anniversary of the discovery of the double helix.

遗传密码和生活分子生物 Living beings 学 Biological情报部门(没有数的起源遗传密码和生活的起源庆祝双螺旋的发现的50周年纪念日。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了