heterochromatin

heterochromatin

美 [ˌhetərə'kroʊmətn] 　英 [ˌhetərə'krəʊmətɪn]

• n.【生】异染色质
• 网络异染色体；异染色体质；异染质

词形变化

复数：heterochromatins  

英汉解释

n.	1. 【生】异染色质

英英解释

n.	1. chromatic material that contains few genes but stains readily with basic dyes and appears as nodules between chromosomes.

例句

This chromatin is called heterochromatin. The chromatin which stains less deeply than heterochromatin is called euchromatin.

异染色质呈较大的深染团块，常染色质染色较淡。

Chromosome material with exhibits of such behaviour is called heterochromatin.

表现这种现象的染色体物质叫做异染色质。

most of the DNA in heterochromatin, including numerous short repeated sequences, does not code for proteins.

异染色质上多数DNA，包括大量重复的短序列，不编码蛋白质。

The origin of such large amounts of constitutive heterochromatin and their role in karyotype evolution and speciation remain a mystery.

如此大量的结构异染色质的来源及其在染色体组型进化和物种形成中的任务仍是一个谜。

The molecular mechanism of OIS is associated with the formation of heterochromatin and DNA-damage check-point response.

它的发生机制与异染色质的形成以及DNA损伤检测点反应的作用相关。

What other functions abundant heterochromatin may perform are still an open question.

至于大量的异染色质还有什么作用仍然是一个问题。

The nucleus round or ellipse lay in the center of cells and the heterochromatin and the nucleolus were not obvious.

细胞核呈圆形或椭圆形，位于细胞中央，异染质和核仁不明显。

Notice the absence of heterochromatin at the site of the pore.

注意核孔处的异染质缺失现象。

Variation of Heterochromatin and Chromosome Polymorphism in the Tufted Deer

毛冠鹿种内异染色质变化与染色体多态

By contrast, heterochromatin is dense and contains relatively few genes;

然而，异染色质则较紧密，而且也含有相对较少的基因。