They have no ribosomes, the cellular components that fabricate the proteins that do all the work of keeping cells alive. 它们没有核糖体&合成蛋白的细胞器,而蛋白是维持细胞存活的物质。
Instead, viruses carry instructions for co-opting the ribosomes of their host, and repurposing them to the job of churning out capsid and other viral proteins. 但病毒会携带利用其宿主核糖体的指令,改变它们的用途,使它们合成大量衣壳及其他病毒蛋白。
Zygotes in the prophase of mitosis and two-celled proembryo became active again in metabolism, for a prominent nucleolus, high density of ribosomes and increased number of polysomes in the cytoplasm. 合子分裂前期和二细胞原胚期,核仁显著,胞质中核糖体的密度增加,出现大量多聚核糖体,细胞代谢活性较强。
The knowledge about higher plant mitochondrial ribosomes is scanty. 关于高等植物线粒体核蛋白体的知识也少的可怜。
Zygote at the dormancy stage had a small nucleolus and marked decrease in ribosomes, as shown by a few polysomes, which suggests decreased metabolism. 休眠期合子的核仁变小,胞质中核糖体数量急剧减少,仅有少量多聚核糖体,细胞代谢活性较弱;
Most cellular proteins are manufactured on ribosomes in the cytoplasm. 大多数细胞蛋白质都是在细胞质中的核糖体上被制造的。
The cisternae of rough endoplasmic reticulum swelled obviously and the ribosomes denuded. 粗面内质网扩张明显,核糖体脱落;细胞核肿胀,染色质浓缩,偏移。
Under normal growth conditions, the majority of the ribosomes is engaged in protein synthesis. 在正常生长条件下大多数的核蛋白体都进行蛋白质合成。
Ribosomes are composed of long chemical chains, called ribonucleic acids ( RNA), and proteins. 核糖体是由称为(RNA)的核糖核酸和蛋白质长化学链构成。
A cluster of ribosomes connected by a strand of messenger RNA and functioning as a unit in protein synthesis. 多核糖体由一束信使核糖核酸联结的一簇核糖体,在蛋白质合成中起一个单位的作用。
It has been shown that this occurs in bacteria in that antisense RNA sets up base pairs with a certain messenger RNA ( m-RNA) precisely where the ribosomes would start their reading. 在细菌的细胞分离增殖活动中已被证实,反义RNA通过精确的碱基配对从而在此信使RNA的核糖体开始进行转录与翻译活动。
The ribosomes were flash-frozen at various mid-swivel and mid-ratchet configurations and examined under a powerful electron microscope. 在高分辨率的电子显微镜下核糖体各种旋转棘轮中快速凝固。
Some of the cell's ribosomes are attached to the ER and the proteins they manufacture are inserted directly into the space inside the ER. 有些细胞的核糖体是附着在ER和他们制造的蛋白质直接插入到空间内的雌激素受体。
The great bulk of the ribosomes of the plant cell are often detected as large aggregates of so-called polysomes. 植物细胞的大量的核糖核蛋白体往往以多核糖核蛋白的大块集合体的形式被检测出来。
Ribosomes& particles composed of RNA and proteins that are the sites of protein synthesis. 粒线体&由核糖核酸和蛋白质组成的颗粒,是蛋白质合成的场所。
The redesigned ribosomes and tRNAs operate in parallel with existing machinery, so the cell's normal protein translation machinery continues to work as normal. 新设计的核糖体和转运RNA与现有的机制共同存在于细胞中,因而正常的蛋白质翻译机制仍然正常运作。
During microspore vacuolization, their ribosomes declined in quantity again and their mitochondria and plastids became simplified in their structures; 小孢子液泡化过程中核糖体再次减少,同时线粒体和质体结构简化;
Fiber developed initially with the elongation of cells containing ribosomes, mitochondria and Golgi bodies in the dense cytoplasm. 纤维发育早期,细胞具有较大的细胞核和核仁;
Antibody to ribosomes is present in patients with SLE and relatively specific for the diagnosis of SLE. 抗核糖体抗体主要见于SLE,对SLE的诊断具有一定特异性。
Protein Electrophoretic Analysis of Amyloplast and Cytoplasm Ribosomes from Lotus Cotyledon 莲子叶淀粉质体和细胞质核糖体的蛋白质电泳分析
Nucleoli are the domains in which transcription and processing of rRNA and assembly of ribosomes take place. 核仁是真核生物细胞的rRNA合成加工和核糖体装配的场所。
Many free ribosomes synthesized numerous proteinous particles and formed yolk granules without membranes by aggregation and fusion of themselves; 丰富的游离核糖体合成了大量致密的蛋白质颗粒并在卵质中直接聚集融合成无膜的卵黄粒;
Immature vitelline cells have relatively little cytoplasm, many free ribosomes. 两种吸虫卵黄细胞发育过程比较相似。
PSRP-1 encoded by the nuclear genome constitutes the 30S subunit of chloroplast ribosomes. PSRP-1(S30/S22)是由核基因组编码的叶绿体核糖体特有的蛋白,组成叶绿体核糖体的30S小亚基。
The NLB of loose structure was frequently associated with free ribosomes and cisternae of the rough endoplasmic reticulum. 结构疏松,边界不清的NLB与粗面内质网和游离核蛋白体关系密切。
Ribosomal protein ( ribosomal protein, RP) is the important composition of ribosomes unit, its main function is to participate in the assembly and protein ribosomes translation. 核糖体蛋白(ribosomalprotein,RP)是组成核糖体的重要单位,其主要功能是参与核糖体的组装和蛋白质的翻译。
Nucleolus is the most prominent structural and functional domain in interphase nuclear of eukaryotic, in which assembly of ribosomes and processing of rRNA take place. 核仁是真核生物间期细胞核中最明显的结构和功能区域,是核糖体装配和rRNA合成的场所。
Microfilaments within the cytoplasm, there are many free ribosomes. 细胞质内有微丝,有许多游离核糖体。