Gene regulation in prokaryotes
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- Опубликовано: 29 май 2015
- This lecture explains about the Gene regulation in prokaryotes.
Regulation of gene expression entails a broad range of mechanisms that are used by cells to develop or diminish the production of specific gene products (protein or RNA), and is informally termed gene legislation. Subtle applications of gene expression are greatly located in biology, for example to trigger developmental pathways, respond to environmental stimuli, or adapt to new food sources. Practically any step of gene expression may also be modulated, from transcriptional initiation, to RNA processing, and to the put up-translational amendment of a protein.
Gene law is main for viruses, prokaryotes and eukaryotes as it raises the flexibility and suppleness of an organism via allowing the mobile to express protein when wanted. Despite the fact that as early as 1951 Barbara McClintock confirmed interplay between two genetic loci, Activator (Ac) and Dissociator (Ds), within the color formation of maize seeds, the primary discovery of a gene legislation procedure is largely regarded to be the identification in 1961 of the lac operon, learned by means of Jacques Monod, where some enzymes concerned in lactose metabolism are expressed with the aid of the genome of E. Coli most effective in the presence of lactose and absence of glucose.
Furthermore, in multicellular organisms, gene legislation drives the approaches of mobile differentiation and morphogenesis, leading to the creation of specific mobilephone types that possess distinct gene expression profiles, and as a consequence produce distinctive proteins/have different ultrastructures that swimsuit them to their features (though all of them possess the genotype, which follows the equal genome sequence).
The initiating event leading to a change in gene expression comprise activation or deactivation of receptors. Also, there may be evidence that alterations in a cell's choice of catabolism results in altered gene expressions.
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this really helped answer a lot of questions like why it's named "lac operon". I just thought it was a standard name at first. anyway thank you for the concept help.🖒
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Sir I can't understand ...Aapne Bola Promoter gene Expression control karta hai on the other hand Uh daid that Operater gene expression control karta hai I m Confused
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does this promoter has the tata sequence or not
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Anjani Chaudhary hiîi
Very very much nice way of explanation from my institute teachers
+kalicharan pandey thank you. Glad you liked my lectures
Tq so much sir,this video given a clear picture of gene regulation
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Very clearly understood sir....i hv a doubt...What is the function of operator here??
sorry sir RUclips PR ye topic ke baare m kuchh nhi mila topic h regulation of bacteria by sRna ...plz sir help me..
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Mai ap k sare vedio kk dekhti hu jitne v mere topic m hote h
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Best explanation ever.
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Transcription - processes and regulation in prokaryotes. Pls let me know this.
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Do you mean that bacteria has one promoter for the whole DNA , or each group of genes has a promoter ??
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so if question like GENE EXPRESSION / GENE REGULATION we have to write lac.operon and trp.openon mechanism ...!!?
Yes you need to
very easy explanation
how to work ATP in gene regulations
Thank you🌹
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Thank you
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Please sir can you explain basic concept related , gene regulation like cis element and trans factor.....
hello, i have some question about the genetic part , if you kindly help us , 1.difference btw genetic sequencing and genetic mapping ,2.regulation of transcription and translation tnx alot becuz of ur great videos
Sir u r extremally superb ,....sir plz make vedio on locus countrol region..
Thnks for the help
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good work
What does downstream or upstream mean
Thanx alooot sir
You pronounce super fast the word “they only express for gene A” I am not sure what do you say in that part???
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Is this regulation of transcription?
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Brother ap lactures ko num diya karo smj hi nai ati kis vidyo k baad kis vidyo ko dakhna hay
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Concept clearing lecture.
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Bhai...promoter operator kese kam krta hein baata do
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Hii sir I need a lecture on post translational modifications in prokaryotes..plz help
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