Once synthesized, the histones move into the cell nucleus, where a section of DNA wraps around them to form a structure that resembles beads, or knots, on a string.
一旦合成，组蛋白就会进入细胞核，细胞核内的DNA片段会将组蛋白包裹起来，形成一种类似串珠或绳结的结构。
The nucleus is removed from the egg cell.
细胞核已经从卵细胞中移除。
It is easily extracted, because it is one of a handful of genes found outside the cell nucleus, in structures called mitochondria.
它很容易提取，因为它是在细胞核之外、叫做线粒体的结构里被发现的少量基因之一。
Erythrocytes in mammals are anucleate when mature, meaning that they lack a cell nucleus.
哺乳动物中的红细胞成熟时是无核的，这意味着它们缺乏细胞核。
The transmission of an extracellular signal from the surface of the cell to the nucleus by a relay of protein-protein and protein-ligand interactions.
细胞外的信号通过蛋白与蛋白和蛋白与配体的作用由细胞表面传送到细胞核。
But the big finding is that the cell nucleus has two compartments-and genes are only active in one.
研究者们的另一重大发现是，细胞核中存在两个间隔区域，而其中只有一个区域的基因是活跃的。
They then transferred the fibroblast's nucleus to another dog's egg cell, with its nucleus removed.
然后他们把这个细胞核植入另一只狗的卵细胞中，而这个卵细胞的细胞核已经被移除。
And it is easily extracted, because it is one of a handful of genes found outside the cell nucleus, in structures called mitochondria.
同时也很容易以线粒体的结构萃取，因为它属于细胞核外的基因。
Although mastodon mitochondrial DNA has been sequenced before, the researchers say they were the first to do the analysis on DNA from the cell nucleus - in this case, using material from a tooth.
尽管此前已完成了美洲乳齿象的线粒体dna测序，研究者表示他们还首次实现了对细胞核dna的测序-在本例中使用的材料来自牙齿。
While, like bacteria, archaeans don't have a cell nucleus, they share other traits with eukaryotes like you and me.
虽然，像细菌一样，古生菌也没有细胞核，但是它们与你我这样的真核生物具有其他共同的特性。
We are family: Scientists suspect that a large DNA-based virus took up residence inside a bacterial cell more than a billion years ago to create the first cell nucleus.
病毒跟我们是一家人：科学家认为，十多亿年前一个大的DNA病毒在细菌细胞内居住并形成了第一个细胞核。
It's even possible to make out structures within the cell, such as the nucleus, mitochondria and chloroplasts.
甚至可能辨认出如细胞核、线粒体、叶绿体等细胞结构。
The scientists extracted a cell nucleus from an organ of a dead mouse and planted it into the egg of another mouse which was alive, leading to the birth of the cloned mouse.
科学家们从死鼠的器官中提取细胞核，移入到另一只活鼠的卵细胞中，最终克隆出了小鼠。
Here, we investigate the possibility of whether a tumor cell nucleus, in which transformation is caused by somatic mutation, can be epigenetically reprogrammed into normal tissues.
在这里，我们调查的，是由体细胞突变引起的肿瘤细胞的细胞核，能被后生重编程进入正常组织的可能性。
The neurons in Modha's model only have a soma — the cell body containing the cell nucleus — and simplified spikes.
穆德哈的模型只有一个体细胞——该细胞拥有细胞核——和简化了的Spike神经元。
Vibration prompts movement of the cell nucleus, which is suspended by numerous threadlike fibers called filaments.
振动促进细胞核的运动，细胞核被无数名叫丝的线样纤维悬吊着。
Chromosome — One of the threadlike structures in the cell nucleus; consists of chromatin and carries genetic information (DNA).
细胞核中的线形结构；由染色质构成，携带遗传信息(dna)。
Results NGF chiefly located in endochylema and cell nucleus of neuron in cerebral cortex , hippocampus and reticular formation of brain stem.
结果：NGF主要位于正常大脑皮质各层、海马各区以及脑干网状结构神经元细胞的胞浆与胞核；
Somatic cell nuclear transfer - the transfer of a cell nucleus from a somatic cell into an egg from which the nucleus has been removed.
体细胞核转移-将体细胞中的细胞核转移到另一个已去除细胞核的卵细胞中。
Somatic cell nuclear transfer-the transfer of a cell nucleus from a somatic cell into an egg from which the nucleus has been removed.
体细胞核转移-将体细胞中的细胞核转移到另一个已去除细胞核的卵细胞中。
Acuteness wet wart is a kind of HPV virus infection, the HPV virus is latent in the human skin cell nucleus, naked eye is invisible.
尖锐湿疣是一种HPV病毒感染，这个HPV病毒是潜伏在人体表皮细胞核内，肉眼是看不见的。
And it is easily extracted, because it is one of ah and ful of genes found outside the cell nucleus , in structures called mitochondria.
并且，由于它是在细胞核之外存在的、在结构上被称为线粒体的少数基因之一，因此提取它是件很容易的事。
The biological cell's cell nucleus, includes the chromosome, the composition divides into DNA.
生物细胞的细胞核，含有染色体，组成分为dna。
Objective: To compare compound staining methods showing leprotic bacillus, elastic fibre and cell nucleus etc . in skin biopsy tissue.
目的：探讨显示皮肤活检组织中抗酸麻风杆菌、弹力纤维和细胞等组织成分的复合染色法。
The most prominent sign of degeneration is that the central cell nucleus produced nuclear vacuoles.
没有受精的中央细胞退化时最显著的特点是细胞核产生核膜囊泡。
The mycorrhizal fungi affects the size and shape of the host cell nucleus.
春兰菌根真菌对其宿主的细胞核大小及形状有一定的影响。
DHBV-DNA in the cytoplasm, cell nucleus and medium supernatant was assayed over time.
分时段检测细胞核、细胞浆及培养上清的DHBV - DNA。
Resistance to corn sheath blight is primarily controlled by cell nucleus, generally not affected by cytoplasm effect, but some combinations may be suffered by the cytoplasm effect.
玉米纹枯病抗性主要受细胞核遗传控制，一般不受细胞质效应的影响，但有的组合可能受细胞质效应的影响。
Resistance to corn sheath blight is primarily controlled by cell nucleus, generally not affected by cytoplasm effect, but some combinations may be suffered by the cytoplasm effect.
玉米纹枯病抗性主要受细胞核遗传控制，一般不受细胞质效应的影响，但有的组合可能受细胞质效应的影响。
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