covalent

名词：

名词: covalency

更多词形：

形容词: covalent | 副词: covalently | 名词: covalency |

单词例句：

Highly cross-linked peptidoglycans form a continuous covalent macromolecular net-like structure in almost all eubacteria.

摘要 细菌细胞壁的骨架肽聚糖的生物合成过程在抗生素治疗中具有重要地位。

These groups may provide sites for subsequent covalent coupling of biomolecules.

图谱解析得改性表面具有含氮活性基团（如氨基等）。

Histone 3 methylated at lysine 4(H3K4),one type of these covalent modifications,is associated with active chromatin and gene expression.

组蛋白H3第4赖氨酸的甲基化作为共价修饰的方式之一,可以调控基因的转录激活。

A polar covalent bond happens when one electron has a stronger electrical attraction for the shared electrons than the other atom(s).

当一个原子对共享电子的电吸引强于其它原子时，形成极性共价键。

Relatively small changes in solution temperature or pH, for example, may cause denaturation, which usually occurs without severing covalent bonds.

例如溶解温度或pH值相对很小的变化可能导致变性,这种特性通常不破坏共价键。

The methylation of histone lysine is an important covalent modification at its tails and plays a key role in epigenetic regulation.

组蛋白赖氨酸甲基化是组蛋白尾段发生的一种重要共价修饰,在基因的表观遗传转录调控中起着关键的作用。

Chemical bond mainly includes electrovalent bonds, covalent bonds, and metalic bonds.

化学键主要有离子键、共价键、金属键。

Histone is the nucleus of chromatin, the covalent modifications in its tails form the histone codes that regulate a number of biological processes.

组蛋白是染色质的核心，其尾部的共价修饰组成组蛋白密码，调节许多生物学事件。

In covalent bonding, atoms share electrons.

在共价键联中，原子共有电子。