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What is endogenous promoters?
Endogenous promoters are DNA sequences located upstream of a gene that initiate and regulate the transcription of that gene. These promoters are part of the gene's natural genomic sequence and play a crucial role in controlling gene expression in living organisms.
Why lac operon the gene expression is switch off?
explain the regulation of gene expression in lac operon.
What is the gene expression?
Gene expression is the process by which inheritable information from a gene, such as the DNA sequence, is made into a functional gene product, such as protein or RNA.
When was Critical Reviews in Eukaryotic Gene Expression created?
Critical Reviews in Eukaryotic Gene Expression was created in 1991.
What gene controls the expression of the D1x gene in vertebrates?
The D1x gene is controlled by the Pou4f1 gene in vertebrates. Pou4f1 is a transcription factor that regulates the expression of D1x in the developing nervous system.
What is the difference between a repressor and an activator in gene regulation?
In gene regulation, a repressor is a protein that blocks the expression of a gene, while an activator is a protein that enhances the expression of a gene. Repressors prevent the binding of RNA polymerase to the gene, while activators help RNA polymerase bind to the gene and initiate transcription.
What is the function of the 5' UTR promoter in gene expression regulation?
The 5' UTR promoter in gene expression regulation helps to initiate the process of transcription, which is the first step in making a protein from a gene. It signals the start of transcription and helps regulate the amount of protein that is produced from that gene.
What is endogenous promoters?
Endogenous promoters are DNA sequences located upstream of a gene that initiate and regulate the transcription of that gene. These promoters are part of the gene's natural genomic sequence and play a crucial role in controlling gene expression in living organisms.
What is the difference between sigma factors and transcription factors in gene regulation?
Sigma factors are specific proteins in prokaryotes that help RNA polymerase bind to the promoter region of a gene to initiate transcription. Transcription factors, on the other hand, are proteins in eukaryotes that regulate gene expression by binding to specific DNA sequences and influencing the activity of RNA polymerase. In summary, sigma factors are specific to prokaryotes and help initiate transcription, while transcription factors are found in eukaryotes and regulate gene expression.
What types of DNA sequences help eukaryotic cells regulate gene expression?
Eukaryotic cells use various DNA sequences to regulate gene expression, including promoters, enhancers, and silencers. Promoters are located near the start of a gene and initiate transcription. Enhancers and silencers can be distant from the gene and help to enhance or repress gene expression, respectively. Together, these sequences play important roles in controlling when and how genes are expressed in eukaryotic cells.
What is The expression of a gene is called?
The expression of a gene is called the phenotype.
What codes for protein in the process of gene expression?
In the process of gene expression, the gene codes for protein.
Differential gene expression?
Differential gene expression refers to the gene expression that reacts to stimuli or triggers. It is a means of gene regulation where certain hormones produce an effect on protein biosynthesis.
A mutation in this section of DNA could influence the binding of RNA polymerase to the DNA?
A mutation in the promoter region of DNA, where RNA polymerase binds to initiate transcription, could influence the binding of RNA polymerase. This could alter gene expression by affecting the efficiency or ability of RNA polymerase to initiate transcription of the gene.
When does the most important step in gene regulation occur?
The most important step in gene regulation typically occurs during transcription, where RNA polymerase binds to the promoter region of a gene to initiate the synthesis of messenger RNA (mRNA). This step determines whether a gene will be expressed or not, and is crucial for controlling the levels of gene expression within a cell.
How does dense packing of DNA in chromosome prevent gene expression?
If the gene is obscured and hidden by folds or heavily methylated, RNA polymerase has a difficult time getting to the promoter region to initiate transcription. If the polymerase can't get there, then the gene is not transcribed and translated to a protein.
When was Mouse gene expression database created?
Mouse gene expression database was created in 2010.
