Gene regulation in prokaryotes
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- เผยแพร่เมื่อ 21 ต.ค. 2024
- 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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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??
explained better than my biology textbook
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Thnks for the help
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does this promoter has the tata sequence or not
Cool lectures buddy
Do you mean that bacteria has one promoter for the whole DNA , or each group of genes has a promoter ??
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Please sir can you explain basic concept related , gene regulation like cis element and trans factor.....
Transcription - processes and regulation in prokaryotes. Pls let me know this.
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Plzzz make a video on "Paramutation"
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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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so if question like GENE EXPRESSION / GENE REGULATION we have to write lac.operon and trp.openon mechanism ...!!?
Yes you need to
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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
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Is this regulation of transcription?
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What does downstream or upstream mean
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