File:Lac_Operon.svg
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Summary
DescriptionLac Operon.svg |
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. |
Date | |
Source | Own work |
Author | T A RAJU |
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some value
18 May 2012
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 22:37, 11 June 2019 | 512 × 382 (28 KB) | CatPath | Reverted to version as of 22:32, 11 June 2019 (UTC) | |
22:34, 11 June 2019 | 512 × 382 (28 KB) | CatPath | Reverted to version as of 12:08, 10 April 2015 (UTC) | ||
22:32, 11 June 2019 | 512 × 382 (28 KB) | CatPath | Corrected mistake showing RNA polymerase and lac repressor bound to DNA simultaneously | ||
12:08, 10 April 2015 | 512 × 382 (28 KB) | Evolution and evolvability | tighter crop | ||
13:02, 18 May 2012 | 512 × 384 (22 KB) | Jbmhsrward |
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