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What gene specifies a protein that binds to an operatr and physically blocks rna polymerase from binding to a promoter site?
Wiki User
∙ 10y ago
A regulator.
Wiki User
∙ 10y ago
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A mutation in this section of DNA could influence the binding of RNA polymerase to the DNA?
promoter The promoter is the region of DNA to which RNA polymerase binds to in order to initiate transcription.
How is a promoter region different from an operator region?
A promoter region is different from an operator region in the sense that the operator region is where DNA binds, whereas the promoter region is the binding site for the RNA polymerase. These two different regions are essentially opposites.
What happens to a cell if it lack the enzyme DNA polymerase?
Transcription would be affected because the binding of the enzyme RNA plymerase to the promoter of the gene is the first step of transcription.
How do repressors affect promoters?
a repressor is a protein that binds to DNA, which turns off the genes that code for the digestive enzymes. the promoter, located near the digestive enzyme genes, is a section on DNA that serves as the binding site for the enzyme RNA polymers.
What is produced in transcription?
Transcription in Prokaryotes requires one enzyme for the 4 stages of: 1) binding of RNA polymerase holoenzyme at promoter sites, 2) initiation of polymerization, 3) chain elongation, and 4) chain termination Transcription in Eukaryotes requires three RNA polymerases I, II, and III transcribe rRNA, mRNA, and tRNA genes respectively.
Does a promoter determine whether a gene is expressed?
No it does not a promoter is a binding site for RNA polymerase.
A mutation in this section of DNA could influence the binding of RNA polymerase to the DNA?
promoter The promoter is the region of DNA to which RNA polymerase binds to in order to initiate transcription.
What are a group of proteins that bind to the promoter or enhancer sequences to facilitate the binding of RNA polymerase to the promoter?
transcription factors
How does the active CAP induce expression of the genes of the lactose operon?
It stimulates the binding of RNA polymerase to the promoter.
How does active CAP induce expression of the genes of the lactose operon?
It stimulates the binding of RNA polymerase to the promoter.
What event in transcription initiation likely occurs last?
The binding of RNA polymerase to the promoter sequence is the likely event that occurs last in transcription initiation. This binding allows for the initiation of RNA synthesis and the subsequent elongation of the RNA molecule.
Examples of a molecule in your body that can affect transcription factors?
A repressor, which works by binding to the operator and blocking the attachment of RNA polymerase to the promoter.
Give an examples of a molecule in your body that can affect transcription factors?
A repressor, which works by binding to the operator and blocking the attachment of RNA polymerase to the promoter
How is a promoter region different from an operator region?
A promoter region is different from an operator region in the sense that the operator region is where DNA binds, whereas the promoter region is the binding site for the RNA polymerase. These two different regions are essentially opposites.
How do scientists search for genes?
to look for new genes, scientists scan DNA sequences for known promoter sequences and RNA polymerase binding sites
What turns off transcription by binding to the operator?
A repressor protein turns off transcription by binding to the operator region. By binding to the operator, the repressor prevents the RNA polymerase from binding to the promoter region and initiating transcription. This prevents the expression of the gene or genes downstream of the operator.
How does Transcription take place?
who? the transcription enzyme RNA polymerase, the promoter DNA and the terminator DNAwhere? in the cell nucleusInitiation The promoter, located in the DNA at the beginning of the gene becomes the binding site for the RNA polymerase. Elongation the RNA polymerase copies and peels away the copied DNA, after copied, the DNA joins back with its matching DNA strand while the newly made RNA leave the polymerase Termination the RNA polymerase reaches a special sequence of bases in the DNA template that signals the end of the gene. The polymerase enzyme detaches from the RNA molecule and the gene who? the transcription enzyme RNA polymerase, the promoter DNA and the terminator DNAwhere? in the cell nucleusInitiation The promoter, located in the DNA at the beginning of the gene becomes the binding site for the RNA polymerase. Elongation the RNA polymerase copies and peels away the copied DNA, after copied, the DNA joins back with its matching DNA strand while the newly made RNA leave the polymerase Termination the RNA polymerase reaches a special sequence of bases in the DNA template that signals the end of the gene. The polymerase enzyme detaches from the RNA molecule and the gene
