Prab: CSV import

2025-02-18T12:09:24Z

CSV import

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			<gallery>
			File:Simple_transcription_elongation1.svg\|Gene expression
			File:Pre-mRNA.svg\|Gene expression
			File:Ribosome_mRNA_translation_en.svg\|Gene expression
			File:Protein_folding.png\|Gene expression
			File:Tortie-flame.jpg\|Gene expression
			File:Regulation_of_Lactose_Metabolism_in_Prokaryotes.svg\|Gene expression
			File:Lambda_repressor_1LMB.png\|Gene expression
			File:Nucleosome_1KX5_2.png\|Gene expression
			File:Regulation_of_transcription_in_mammals.jpg\|Gene expression
			File:DNA_methylation.svg\|Gene expression
			File:Brain_regions_involved_in_memory_formation.jpg\|Gene expression
			File:Neomycin_B_C.svg\|Gene expression
			</gallery>

Prab: CSV import

2024-02-23T08:54:53Z

CSV import

New page

'''Gene expression''' is the process by which information from a [[gene]] is used in the synthesis of a functional [[gene product]]. These products are often [[protein]]s, but in non-protein coding genes such as [[transfer RNA]] (tRNA) or [[small nuclear RNA]] (snRNA) genes, the product is a functional RNA.

== Overview ==

The process of gene expression involves two main stages:
* '''[[Transcription (genetics)|Transcription]]''': the production of [[messenger RNA]] (mRNA) from DNA.
* '''[[Translation (biology)|Translation]]''': the production of proteins from mRNA.

Gene expression is controlled by the [[cell]]'s machinery, the [[gene's sequence]], and the abundance and accessibility of [[ribosome]]s. Errors in gene expression can lead to diseases like [[cancer]] and many [[genetic disorder]]s.

== Regulation of Gene Expression ==

[[Regulation of gene expression]] includes a wide range of mechanisms that are used by cells to increase or decrease the production of specific gene products. Regulation of gene expression can also serve as a basis for [[cellular differentiation]], the formation of a multicellular organism from a single fertilized egg.

== Gene Expression and Disease ==

Changes in the expression of certain genes can lead to diseases. For example, in some cancers, certain genes are 'switched off' or genes may be expressed at the wrong time or in the wrong cell type. This can result in the production of proteins that are not needed by the cell, or the 'switching off' of genes that are needed for cell growth and development.

== See Also ==

* [[Gene]]
* [[Protein]]
* [[Transcription (genetics)|Transcription]]
* [[Translation (biology)|Translation]]
* [[Regulation of gene expression]]
* [[Cellular differentiation]]
* [[Cancer]]
* [[Genetic disorder]]

[[Category:Genetics]]
[[Category:Biochemistry]]
[[Category:Molecular biology]]
[[Category:Cell biology]]

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← Older revision		Revision as of 12:09, 18 February 2025
Line 34:		Line 34:

	{{stub}}		{{stub}}
			<gallery>
			File:Simple_transcription_elongation1.svg\|Gene expression
			File:Pre-mRNA.svg\|Gene expression
			File:Ribosome_mRNA_translation_en.svg\|Gene expression
			File:Protein_folding.png\|Gene expression
			File:Tortie-flame.jpg\|Gene expression
			File:Regulation_of_Lactose_Metabolism_in_Prokaryotes.svg\|Gene expression
			File:Lambda_repressor_1LMB.png\|Gene expression
			File:Nucleosome_1KX5_2.png\|Gene expression
			File:Regulation_of_transcription_in_mammals.jpg\|Gene expression
			File:DNA_methylation.svg\|Gene expression
			File:Brain_regions_involved_in_memory_formation.jpg\|Gene expression
			File:Neomycin_B_C.svg\|Gene expression
			</gallery>

Gene expression - Revision history

Prab: CSV import

Prab: CSV import