The lac operon is an operon required for the transport and metabolism of lactose in E.coli. When lactose is introduced to the increased medium, the lac genes are expressed due to the fact allolactose binds to the Lac repressor protein and maintains it from binding to the lac operator. Allolactose is an isomer of lactose. Small quantities of allolactose are shaped when lactose enters into E. coli. allolactose binds to the repressor protein and reasons the conformational change. As a result of this, the repressor can no longer bind to the operator area and falls off. RNA polymerase can then bind to the promoter and transcribe the lac genes. After some time, when the level of lactose decreases as it is metabolized using enzymes, it causes the synthesis of the repressor from the regulator gene. This repressor binds to the operator gene and prevents RNA polymerase from transcribing the operon and the transcription is stopped. This type of law is acknowledged as negative regulation.
Allolactose is a disaccharide comparable to lactose. It consists of the monosaccharides D-galactose and D-glucose linked thru a β1-6 glycosidic linkage alternatively of the β1-4 linkage of lactose. It may additionally occur from the occasional transglycosylation of lactose through β-galactosidase.
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Answer:
Hi, This question has no specifications though. its general question, we do'nt know about which type of experiment you are asking?
Explanation:
you need to perform any experiment , after performing it just note down which tools you used and the procedure of using every specific tool in sequence. after that just note down the specific readings you get that would be your data.
i hope this can help you. thanks
Answer:
Option A, Upper areas are cooler than others
Explanation:
The relation between the latitude and climate i.e temperature is inversely proportional.
Regions located at lower latitude are actually located at a distance far away from the equator. An equator receives the highest sunlight thus a region located at a distance far away from the equator receives lower amount of sunlight due to which its temperature is a bit colder as compared to regions lying close to the equator.
Hence, option A is correct
Answer: B
Explanation:
"Furthermore, ectomycorrhizal fungi can slow down decomposition, a natural process that returns carbon from forest soils back to the atmosphere. In these ways, ectomycorrhizal fungi enhance the ability of forests to keep carbon locked up in trees and soils, and out of the atmosphere." (http://www.bu.edu/articles/2018/4-things-to-know-about-fungi-climate-warriors/)
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The security guard it holds everything together or the foundation of the school
