answersLogoWhite

0

When a protein binds to an operator, it blocks the RNA polymerase from binding to the promoter region of the gene. This prevents the transcription process from starting, leading to inhibition of gene expression.

User Avatar

AnswerBot

6mo ago

What else can I help you with?

Continue Learning about Biology
Related Questions

A protein that binds to an operator and inhibits transcription?

A repressor protein binds to the operator region of DNA to inhibit the binding of RNA polymerase, blocking transcription of the gene. This mechanism is common in prokaryotic organisms to regulate gene expression by preventing transcription of specific genes when they are not needed.


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.


What is the name of the DNA sequence that is located newr the promoter of the lactose operon and regulates the expression of the operon in E.Coli?

The DNA sequence located near the promoter of the lactose operon in E. coli that regulates its expression is called the lac operator. The lac operator binds the lac repressor protein, which inhibits transcription of the operon when lactose is absent. When lactose is present, it binds to the repressor, causing it to release from the operator and allowing transcription to proceed.


What state is the repressor protein in when tryptophan is absent?

When tryptophan is absent, the repressor protein is in an inactive state, allowing transcription of the trp operon to continue. This is because the repressor protein needs tryptophan to bind to it, enabling it to attach to the operator region and block transcription of the operon.


How does the repressors protein prevent transcription?

By attaching to the a region of the gene called operator thus blocking RNA polymerase so that the gene is not transcribed.


What gene specifies a protein that binds to an operatr and physically blocks rna polymerase from binding to a promoter site?

The gene that specifies a protein known as a repressor can bind to the operator region in the DNA, physically blocking RNA polymerase from binding to the promoter site. This mechanism helps regulate gene expression by preventing transcription of the gene.


What is a operator in biology?

In biology, an operator is a specific region of DNA that interacts with regulatory proteins to control the transcription of adjacent genes. It is part of an operon, a cluster of genes transcribed together, primarily in prokaryotes. The binding of a repressor or activator protein to the operator can either inhibit or promote gene expression, thereby regulating metabolic pathways and cellular functions. This mechanism is crucial for the efficient use of resources and adaptation to environmental changes.


How does lactose caue the lac opero to turn on?

Lactose activates the lac operon by binding to the repressor protein, which normally inhibits the operon by blocking transcription. When lactose is present, it is converted into allolactose, which binds to the repressor, causing a conformational change that releases it from the operator region of the operon. This removal allows RNA polymerase to access the promoter and initiate transcription of the genes needed for lactose metabolism. Consequently, the lac operon is turned on in the presence of lactose.


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.


The presence of a repressor protein prevents the action of what enzyme?

The presence of a repressor protein prevents the action of RNA polymerase, which is responsible for transcribing DNA into RNA. By binding to specific regions on DNA, the repressor protein inhibits RNA polymerase from accessing the gene and initiating transcription.


How is protein synthesis?

Protein synthesis occurs by the processes of transcription and translation. In transcription, the genetic code.


What are two parts of protein synthesis?

transcription and translation

Trending Questions
Where in the body are T cells stored? How high do mosquitoes fly? What would happen the population of rock dwelling lizards if all the rocks are removed from a desert ecosystem and turn in the animals which eat them? What did Rudolph Virchow observe under the microscope in 1855? How does soil contribute to the growth of plants? Example of animals with closed circulatory system? Where is the second stage of photosynthesis occur? What is the difference between eukaryota and prokaryota? What is a sentence using biome? A dna fragment with a sticky end that reads -attcg will bind with another dna fragment with a sticky end that reads? What would life be like if you were only six inches tall? How long does it take for carbohydrates to convert into sugar in the body? Intructions for traits that are passed from parents to offspring are known as? What would an enzyme be called if it moves methyl groups between molecules? The type of reaction by which proteins are synthesized? What invention was an early step in the discovery of cells? What are created when the bodies of dead organisms are buried in the sediments or sand and mineralize over time? What provide the new material on which evolution can act b.Genetic conservation c. Mutations d. Phenotypes a. Trader Joe's's .? When prisoners are lined up against a wall and shot what is that called? Living organisms must be able to obtain materials, change the materials into new forms, remove poisons, and move needed material from one place to another Many of these activities directly require?