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- Cell_nucleus abstract "In cell biology, the nucleus (pl. nuclei; from Latin nucleus or nuculeus, meaning kernel) is a membrane-enclosed organelle found in eukaryotic cells. It contains most of the cell's genetic material, organized as multiple long linear DNA molecules in complex with a large variety of proteins, such as histones, to form chromosomes. The genes within these chromosomes are the cell's nuclear genome. The function of the nucleus is to maintain the integrity of these genes and to control the activities of the cell by regulating gene expression — the nucleus is, therefore, the control center of the cell. The main structures making up the nucleus are the nuclear envelope, a double membrane that encloses the entire organelle and isolates its contents from the cellular cytoplasm, and the nucleoskeleton (which includes nuclear lamina), a network within the nucleus that adds mechanical support, much like the cytoskeleton, which supports the cell as a whole.Because the nuclear membrane is impermeable to large molecules, nuclear pores are required that regulate nuclear transport of molecules across the envelope. The pores cross both nuclear membranes, providing a channel through which larger molecules must be actively transported by carrier proteins while allowing free movement of small molecules and ions. Movement of large molecules such as proteins and RNA through the pores is required for both gene expression and the maintenance of chromosomes. The interior of the nucleus does not contain any membrane-bound sub compartments, its contents are not uniform, and a number of sub-nuclear bodies exist, made up of unique proteins, RNA molecules, and particular parts of the chromosomes. The best-known of these is the nucleolus, which is mainly involved in the assembly of ribosomes. After being produced in the nucleolus, ribosomes are exported to the cytoplasm where they translate mRNA.".
- Cell_nucleus thumbnail HeLa_Hoechst_33258.jpg?width=300.
- Cell_nucleus wikiPageExternalLink cellimages.ascb.org.
- Cell_nucleus wikiPageExternalLink browse.php?CISOROOT=%2Fp4041coll11.
- Cell_nucleus wikiPageExternalLink p4041coll6.
- Cell_nucleus wikiPageExternalLink p4041coll11,62.
- Cell_nucleus wikiPageExternalLink ?page=compartment.
- Cell_nucleus wikiPageExternalLink cytoplasmic.php.
- Cell_nucleus wikiPageExternalLink www.ascb.org.
- Cell_nucleus wikiPageExternalLink education_main.htm.
- Cell_nucleus wikiPageExternalLink go-0005634.
- Cell_nucleus wikiPageID "6235".
- Cell_nucleus wikiPageRevisionID "605743904".
- Cell_nucleus by "no".
- Cell_nucleus hasPhotoCollection Cell_nucleus.
- Cell_nucleus label "Cell nucleus".
- Cell_nucleus lcheading "Cell nuclei".
- Cell_nucleus onlinebooks "yes".
- Cell_nucleus subject Category:Cell_anatomy.
- Cell_nucleus subject Category:Cell_nucleus.
- Cell_nucleus subject Category:Organelles.
- Cell_nucleus comment "In cell biology, the nucleus (pl. nuclei; from Latin nucleus or nuculeus, meaning kernel) is a membrane-enclosed organelle found in eukaryotic cells. It contains most of the cell's genetic material, organized as multiple long linear DNA molecules in complex with a large variety of proteins, such as histones, to form chromosomes. The genes within these chromosomes are the cell's nuclear genome.".
- Cell_nucleus label "Celkern".
- Cell_nucleus label "Cell nucleus".
- Cell_nucleus label "Jądro komórkowe".
- Cell_nucleus label "Noyau (biologie)".
- Cell_nucleus label "Nucleo cellulare".
- Cell_nucleus label "Núcleo celular".
- Cell_nucleus label "Núcleo celular".
- Cell_nucleus label "Zellkern".
- Cell_nucleus label "Клеточное ядро".
- Cell_nucleus label "نواة (خلية)".
- Cell_nucleus label "細胞核".
- Cell_nucleus label "细胞核".
- Cell_nucleus sameAs Buněčné_jádro.
- Cell_nucleus sameAs Zellkern.
- Cell_nucleus sameAs Κυτταρικός_πυρήνας.
- Cell_nucleus sameAs Núcleo_celular.
- Cell_nucleus sameAs Zelula_nukleo.
- Cell_nucleus sameAs Noyau_(biologie).
- Cell_nucleus sameAs Inti_sel.
- Cell_nucleus sameAs Nucleo_cellulare.
- Cell_nucleus sameAs 細胞核.
- Cell_nucleus sameAs 세포핵.
- Cell_nucleus sameAs Celkern.
- Cell_nucleus sameAs Jądro_komórkowe.
- Cell_nucleus sameAs Núcleo_celular.
- Cell_nucleus sameAs m.01vp8.
- Cell_nucleus sameAs Q40260.
- Cell_nucleus sameAs Q40260.
- Cell_nucleus wasDerivedFrom Cell_nucleus?oldid=605743904.
- Cell_nucleus depiction HeLa_Hoechst_33258.jpg.
- Cell_nucleus isPrimaryTopicOf Cell_nucleus.