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nucleolus

n. 核,细胞核,核仁

核,细胞核,核仁

WordNet (r) 3.0 (2006) (WordNet)

nucleolus
n 1: a small round body of protein in a cell nucleus; such
organelles contain RNA and are involved in protein
synthesis [synonym: {nucleolus}, {nucleole}]

The Collaborative International Dictionary of English v.0.48 (gcide)

Nucleolus \Nu*cle"o*lus\, n.; pl. {Nucleoli}. [L., a little nut,
dim. of nucleus.]
1. A little nucleus.
[1913 Webster]

2. (Biol.) A small rounded body contained in the nucleus of a
cell or a protozoan.
[1913 Webster]

Note: It was termed by Agassiz the entoblast. In the
protozoa, where it may be situated on one side of the
nucleus, it is sometimes called the endoplastule, and
is supposed to be concerned in the male part of the
reproductive process. See {Nucleus}.
[1913 Webster]

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Nucleolus - Wikipedia
It is best known as the site of ribosome biogenesis The nucleolus also participates in the formation of signal recognition particles and plays a role in the cell's response to stress [2] Nucleoli are made of proteins, DNA and RNA, and form around specific chromosomal regions called nucleolar organizing regions
Nucleolus - Definition, Structure, Function
Nucleolus Definition The nucleolus is a dense, spherical, membrane-less structure found within the nucleus of eukaryotic cells It is the site where ribosomal RNA (rRNA) transcription, processing, and ribosome subunit assembly occur
Nucleolus | Definition, Function, Ribosome, rRNA, Structure, Facts . . .
Inside the nucleus is a syrupy nucleoplasm that contains the threadlike chromatin, which contains the cell's DNA, and at least one nucleolus, the site of rRNA production
Nucleolus - National Human Genome Research Institute
The nucleolus is a region found within the cell nucleus that is concerned with producing and assembling the cell's ribosomes
Nucleolus – Definition, Location, Structure, Functions, Picture
The nucleolus (plural: nucleoli) is described as a large, round body located inside the matrix of the nucleus of a eukaryotic cell It is membrane-less and is made up of RNA and proteins The nucleolus is more prominently seen in an interphase nucleus
The multifunctional nucleolus - Nature Reviews Molecular Cell Biology
The nucleolus is a dynamic structure that disassembles when cells enter mitosis and reassembles following cell division This involves a complex and highly regulated series of stepwise molecular
Nucleolus: definition, structure and function | Kenhub
The nucleolus (plural: nucleoli) is a dark-staining, typically spherical body within the nucleus of a cell It is a dense non-membrane-bound structure which forms a specialized subdomain of the nucleus that is responsible for the synthesis of ribosomal subunits
Nucleolus: Structure, Diagram its Function - GeeksforGeeks
The nucleolus is a membrane-less cellular structure located within the nucleus of eukaryotic cells It plays an important role in the synthesis and assembly of ribosomes, the cell's protein factories
Nucleolus - an overview | ScienceDirect Topics
The nucleolus is defined as a non–membrane-bound structure within the nucleus that forms around ribosomal RNA (rRNA) gene loci and is the site of rRNA transcription, processing, and the assembly of preribosomal subunits It contains ribosomal DNA, RNA, and proteins, including RNA polymerases
The Nucleolus and Its Associated Pathologies - Menjivar‐Vallecillo . . .
This review classifies nucleolus-associated diseases into seven categories: deficiencies in protein synthesis, ribosomal and non-ribosomal alterations, cancer and nucleolar alterations, diseases related to aging and cellular stress, autoimmune diseases, and viral diseases

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