| NO | Nucleolus organizers |
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| NOR | nucleolus organiser region |
| NOR | Nucleolus organizing region |
methyl group
| nucleolus | <cell biology> A small dense body (sub organelle) within the nucleus of eukaryotic cells, visible by phase contrast and interference microscopy in live cells throughout interphase. Contains RNA and protein and is the site of synthesis of ribosomal RNA. The nucleolus surrounds a region of one or more chromosomes (the nucleolar organiser) in which are repeated copies of the DNA coding for ribosomal RNA. (18 Nov 1997) |
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| nucleolus organiser | <molecular biology> Loop of DNA that has multiple copies of rRNA genes. See: nucleolus. (18 Nov 1997) |
| nucleolus organiser region | The chromosome region which is active in nucleolus formation and which functions in the synthesis of ribosomal RNA. (12 Dec 1998) |
| cell nucleolus | Within most types of eukaryotic cell nucleus, a distinct region, not delimited by a membrane, in which some species of rrna (RNA, ribosomal) are synthesised and assembled into ribonucleoprotein subunits of ribosomes. In the nucleolus rrna is transcribed from a nucleolar organiser, i.e., a group of tandemly repeated chromosomal genes which encode rrna and which are transcribed by RNA polymerase I. (12 Dec 1998) |
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| granular component of nucleolus | Area of nucleolus that appears granular in the electron microscope and contains 15nm diameter particles that are maturing ribosomes. In contrast to the pale staining and fibrillar areas. (18 Nov 1997) |
| chromatin nucleolus | <cell biology> The central portion of a cells nucleus that typically contains a glob of heterochromatin. Origin: Gr. Soma = body (09 Oct 1997) |
| false nucleolus | <cell biology> The central portion of a cells nucleus that typically contains a glob of heterochromatin. Origin: Gr. Soma = body (09 Oct 1997) |
Synonyms : Nucleolar Organizers, Nucleolus Organizer Regions, Organizer Region, Nucleolus, Organizer Regions, Nucleolus, Organizer, Nucleolar, Organizers, Nucleolar, Region, Nucleolus Organizer, Regions, Nucleolus Organizer
| nucleolus |
a small round body of protein in a cell nucleus; such organelles contain RNA and are involved in protein synthesis
Ãâó: wordnet.princeton.edu/perl/webwn
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| nucleolus |
In biology, the nucleolus is, strictly speaking, a "suborganelle" of the cell nucleus, which is an organelle. Only plant and animal nuclei have nucleoluses. Most plant and animal cells have one or more nucleoluses although some do not. No membrane separates the nucleolus from the nucleoplasm. The nucleolus are made of protein and ribonucleic acid (RNA) and contains proteins as well as ribosomal RNA. ...
Ãâó: en.wikipedia.org/wiki/Nucleolus
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| nucleolus |
(L. nucleolus, a small nucleus) An RNA-rich intranuclear organelle in the nucleus of eukaryotic cells, produced by a nucleolar organizer. It represents the storage place for ribosomes and ribosome precursors. The nucleolus consists primarily of ribosomal precursor RNA, ribosomal RNA, their associated proteins, and some, perhaps all, of the enzymatic equipment (RNA polymerase, RNA methylase, RNA cleavage enzymes) required for synthesis, conversion and assembly of ribosomes. ...
Ãâó: www.fao.org/docrep/003/X3910E/X3910E17.htm
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| nucleolus |
A dense body found in the cell nucleus. The nucleolus functions to transcribe and process ribosomal RNA and to assemble ribosomal precursors.
Ãâó: www.genpromag.com/Glossary~LETTER~N.html
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| nucleolus |
An organelle within the eukaryotic nucleus; the site of transcription of the ribosomal RNA genes and assembly of the ribosomal subunits.
Ãâó: www.modernhumanorigins.com/n.html
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| nucleolus | a small round body of protein in a cell nucleus |
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| nucleolus | the particular part of a chromosome that is associated with a nucleolus after nuclear division |
| nucleolus | the particular part of a chromosome that is associated with a nucleolus after nuclear division |
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