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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
The nucleolus ( nj uː ˈ k l iː ə l ə s, ˌ nj uː k l i ˈ oʊ l ə s ; pl : nucleoli -l aɪ ) is the largest structure in the nucleus of eukaryotic cells [1] It is best known as the site of ribosome biogenesis
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 – Definition, Location, Structure, Functions, Picture
What is Nucleolus 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
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 – Definition, Structure, Function - Science Notes and Projects
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
The Nucleolus: Structure and Function - PMC - PubMed Central (PMC)
The nucleolus is the largest nuclear organelle and is the primary site of ribosome subunit biogenesis in eukaryotic cells It is assembled around arrays of ribosomal DNA genes, forming specific chromosomal features known as nucleolar organizing
Structure of the Nucleolus - BYJUS
The nucleolus is the distinct structure present in the nucleus of eukaryotic cells Primarily, it participates in assembling the ribosomes, alteration of transfer RNA and sensing cellular stress The nucleolus is composed of RNA and proteins, which form around specific chromosomal regions
The Nucleolus: What Is It and What Does It Do in a Cell?
The nucleolus possesses an organized internal structure, divided into three main regions: the Fibrillar Center (FC), the Dense Fibrillar Component (DFC), and the Granular Component (GC) These sub-compartments are not separated by membranes but represent areas where different stages of ribosome production occur Each region has a unique

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