Am faidhle tùsail(Faidhle SVG, a-rèir ainm 512 × 382 pixel, meud faidhle: 28 KB)

'S ann à Wikimedia Commons a tha am faidhle seo agus faodaidh gu bheil pròiseactan eile 'ga chleachdadh. Chì thu an tuairisgeul a tha aice air [duilleag tuairisgeul an fhaidhle https://commons.wikimedia.org/wiki/File:Lac_Operon.svg] gu h-ìosal.

Gearr-chunntas

Tuairisgeul
English: 1: RNA Polymerase, 2: Repressor, 3: Promoter, 4: Operator, 5: Lactose, 6: lacZ, 7: lacY, 8: lacA.

Top: The gene is essentially turned off. There is no lactose to inhibit the repressor, so the repressor binds to the operator, which obstructs the RNA polymerase from binding to the promoter and making lactase.

Bottom: The gene is turned on. Lactose is inhibiting the repressor, allowing the RNA polymerase to bind with the promoter, and express the genes, which synthesize lactase. Eventually, the lactase will digest all of the lactose, until there is none to bind to the repressor. The repressor will then bind to the operator, stopping the manufacture of lactase.
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A numbered schematic showing the action of the lac repressor on the lac operon.

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depicts Beurla

creator Beurla

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18 dhen Chèitean 2012

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Briog air ceann-là/àm gus am faidhle a shealltainn mar a nochd e aig an àm sin.

Ceann-là/ÀmDealbhagMeudCleachdaicheBeachd
làithreach22:37, 11 dhen Ògmhios 2019Dealbhag airson an tionndaidh on 22:37, 11 dhen Ògmhios 2019512 × 382 (28 KB)CatPathReverted to version as of 22:32, 11 June 2019 (UTC)
22:34, 11 dhen Ògmhios 2019Dealbhag airson an tionndaidh on 22:34, 11 dhen Ògmhios 2019512 × 382 (28 KB)CatPathReverted to version as of 12:08, 10 April 2015 (UTC)
22:32, 11 dhen Ògmhios 2019Dealbhag airson an tionndaidh on 22:32, 11 dhen Ògmhios 2019512 × 382 (28 KB)CatPathCorrected mistake showing RNA polymerase and lac repressor bound to DNA simultaneously
12:08, 10 dhen Ghiblean 2015Dealbhag airson an tionndaidh on 12:08, 10 dhen Ghiblean 2015512 × 382 (28 KB)Evolution and evolvabilitytighter crop
13:02, 18 dhen Chèitean 2012Dealbhag airson an tionndaidh on 13:02, 18 dhen Chèitean 2012512 × 384 (22 KB)Jbmhsrward

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