heterochromatin

heterochromatin

美 [?het?r?'kro?m?tn] 　英 [?het?r?'kr??m?t?n]

• n.【生】異染色質
• 網絡異染色體；異染色體質；異染質

詞形變化

復數：heterochromatins  

英漢解釋

n.	1. 【生】異染色質

英英解釋

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.

異染色質呈較大的深染團塊，常染色質染色較淡。

Chromosome material with exhibits of such behaviour is called heterochromatin.

表現這種現象的染色體物質叫做異染色質。

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

異染色質上多數DNA，包括大量重復的短序列，不編碼蛋白質。

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

如此大量的結構異染色質的來源及其在染色體組型進化和物種形成中的任務仍是一個謎。

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

它的發生機制與異染色質的形成以及DNA損傷檢測點反應的作用相關。

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

至于大量的異染色質還有什么作用仍然是一個問題。

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

細胞核呈圓形或橢圓形，位于細胞中央，異染質和核仁不明顯。

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

注意核孔處的異染質缺失現象。

Variation of Heterochromatin and Chromosome Polymorphism in the Tufted Deer

毛冠鹿種內異染色質變化與染色體多態

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

然而，異染色質則較緊密，而且也含有相對較少的基因。