chromatin

美 { "us": "", "uk": "" }
英 { "us": "", "uk": "" }
数据源: ai_enrichment
染色质是细胞核内由DNA、RNA和蛋白质组成的复合物,负责储存和调控遗传信息。

用法要点

句型搭配

染色质通常作为名词使用,常见于描述其结构、功能或变化,如"chromatin structure"或"chromatin remodeling"。

• chromatin organization
• chromatin accessibility
• chromatin modification

介词用法

染色质常与介词"in"连用表示位置,如"in chromatin";与"of"连用表示所属,如"the structure of chromatin"。

• in the chromatin
• of chromatin
• within chromatin

语域说明

染色质是高度专业化的生物学术语,主要用于科学、医学和学术语境,日常对话中极少使用。

• chromatin research
• chromatin biology
• chromatin studies

基础例句

In biology class, we learned that chromatin is found in the nucleus of cells.

在生物课上,我们学到染色质存在于细胞核中。

The teacher explained how chromatin helps package DNA efficiently.

老师解释了染色质如何帮助高效地包装DNA。

I read an article about chromatin and its role in gene regulation.

我读了一篇关于染色质及其在基因调控中作用的文章。

高级例句

Recent studies have shown that chromatin remodeling is crucial for cellular differentiation.

最近的研究表明,染色质重塑对于细胞分化至关重要。

The research team used chromatin immunoprecipitation to map protein-DNA interactions.

研究团队使用染色质免疫沉淀技术来绘制蛋白质-DNA相互作用图谱。

Alterations in chromatin structure can lead to epigenetic changes and disease.

染色质结构的改变可能导致表观遗传变化和疾病。

高频搭配

verb

modify chromatinremodel chromatincondense chromatinanalyze chromatinstudy chromatin

adjective

condensed chromatinopen chromatinheterochromatic chromatineuchromatic chromatinactive chromatin

noun

chromatin structurechromatin organizationchromatin accessibilitychromatin modificationchromatin remodeling

adverb

highly condensed chromatintightly packed chromatinloosely organized chromatin

preposition

in chromatinof chromatinwithin chromatinon chromatin

phrase

chromatin immunoprecipitationchromatin conformation capturechromatin statechromatin landscape

常见错误

❌ 错误:The chromatin is a simple protein.
✓ 正确:Chromatin is a complex of DNA, RNA, and proteins.

错误在于将染色质描述为单一蛋白质,实际上它是DNA、RNA和蛋白质的复合物,且作为不可数名词时通常不加冠词"the"。

❌ 错误:Chromatin can be seen in the cytoplasm.
✓ 正确:Chromatin is located in the nucleus of eukaryotic cells.

错误在于将染色质置于细胞质中,正确位置是细胞核,特别是在真核细胞中。

近义词辨析

chromosome

染色体是染色质在细胞分裂期间高度凝缩形成的结构,而染色质是更松散、动态的DNA-蛋白质复合物,存在于细胞间期。

During interphase, chromatin is loosely organized, but it condenses into chromosomes during mitosis.

chromatin fiber

染色质纤维是染色质的基本结构单位,由核小体串珠状排列而成,而染色质泛指整个DNA-蛋白质复合物,包括更高级的结构。

The chromatin fiber is composed of nucleosomes, which are the fundamental units of chromatin packaging.