염색질은 특히 인(nucleolus)이라고 불리는 핵 내부 영역에 집중되어 있습니다. 인은 mRNA를 단백질로 번역하는 리보솜(ribosome)의 생산에 중요합니다. 인에서 리보솜 RNA가 합성되고 단백...
长臂平行伸展、无随体5354正常男性:正常男性:46,XY正常女性:正常女性:46,XX55第三节第三节 核仁核仁nucleolus56概念概念 核仁(核仁(nucleolus):细胞核内由特定染):细胞核内由特定染色体上的核仁组织区缔合而成的结构,色体上的核仁组织区缔合而成的结构,是细胞内合成是细胞内合成rRNA、装配核糖体亚基、装配核糖体...
nucleole,nucleolus- a small round body of protein in a cell nucleus; such organelles contain RNA and are involved in protein synthesis chromatin,chromatin granule- the readily stainable substance of a cell nucleus consisting of DNA and RNA and various proteins; during mitotic division it condense...
5. RESULTS: Under a phase contrast microscope, NSCs showed turgor vitalis, clear nucleus and nucleolus, enlarged nervous process and dense lattice. 结果:在相差显微镜下观察培养的神经干细胞,细胞形态丰满,胞核及核仁清晰可见,神经突起粗大,网络稠密。
(初中老教材、高中教材或一些国外教材认为细胞核不是细胞器,大学细胞生物学则认为是细胞器,这里以大学教材为准),它主要由核膜(nuclear membrane)、染色质(chromatin)、核仁(nucleolus)、核基质(nuclear matrix)等组成。 目录 1简介 2发现史 3定义 4介绍分布形态大小数目...
The nucleus and nucleolus of a cell. From Mahon and Manuselis, 2000. nucleus ambi´guusthe nucleus of origin of motor fibers of the glossopharyngeal, vagus, and accessory nerves in the medulla oblongata. nucleus an´sae lenticula´ris(nucleus of ansa lenticularis) a collection of neuron...
The components of a nucleus include the nuclear envelope, which protects the interior of the nucleus and contains pores, which allow for substances to pass through. Inside the envelope is the nucleoplasm which contains DNA in the form of chromatin and the nucleolus, in which rRNA is produced. ...
于细胞的一侧或边缘。形状：多种多样，与细胞形状 相适应。数量：一般为单核，有的为 双核或多核。大小：5-30um 核体积 核质比＝=细胞质体积 细胞核的主要结构：核膜核纤层染色质核基质核仁 第一节核膜 核膜(nuclearenvelope)：电镜下，核膜是由两层单位膜构成。一、外核膜二、内核膜三、核周间隙四、核孔 一...
· Nucleus components - Whereas the atomic nucleus consists of protons and neutrons, the cellular nucleus contains the nucleolus, nucleoplasm, and chromatin· Nuclear membrane - Cellular nucleus has a nuclear membrane that acts as the barrier between the internal and external parts of the nucleus. ...
This section across the nucleus reveals mainly the respective areas occupied by euchromatin (eu) and heterochromatin (he), and the nucleolus (nu). The peripheral band of heterochromatin is interrupted at the level of the nuclear pores (NP)....