answersLogoWhite

0

The lac operon is a place on the DNA that binds to the DNA to stop the production of the RNA sequence to code for lactase (breaks down lactose) or binds to lactase to let the production of the RNA sequence to proceed.

User Avatar

Wiki User

10y ago

What else can I help you with?

Related Questions

The lac operon helps E. coli absorb?

t68u56r3


Lactose in take in E. coli?

it is by lac operon syastem


How many genes in the lac operon are found in e. coli?

My answer is 3, I am pretty sure I am right, but I would double check to make sure. I am in ninth grade taking biology at PineTree.


How does e coli with limited food supply respond?

The lac operon is switched on so the E. coli can use it as a food source.


What is the lac operon in E. coli a classic example of?

gene expression occurring at transcription


Is the lac operon found in prokaryotes or eukaryotes?

The lac operon is found in prokaryotes, specifically in bacteria such as Escherichia coli. It is a regulatory system that controls the expression of genes involved in lactose metabolism. Eukaryotic cells do not typically have operons like the lac operon.


What happen to lac repressor in E. coli when lactose is present?

E. coli binds with lactose which changes its conformation so that it no longer binds to DNA. This allows the lactose operon to be transcribed.


What does the E coli the lac operon controls?

When the lac operon controls the expression of proteins in the E.coli cell that can break down lactose into two sugars, glucose and galactose. When lactose is present, it binds to the repressor that typically sits on the lac operon, changing the repressor's conformation such that it can no longer bind to the lac operon. Because of this, RNA polymerase can now transcribe the gene into mRNA, which in turn is translated into the proteins that can break down lactose.


What does the E coli the lac operon control?

When the lac operon controls the expression of proteins in the E.coli cell that can break down lactose into two sugars, glucose and galactose. When lactose is present, it binds to the repressor that typically sits on the lac operon, changing the repressor's conformation such that it can no longer bind to the lac operon. Because of this, RNA polymerase can now transcribe the gene into mRNA, which in turn is translated into the proteins that can break down lactose.


What molecule causes transcription of an operon?

The molecule that typically causes transcription of an operon is an inducer, which can either activate or repress the operon by binding to a regulatory protein. In the case of an inducible operon like the lac operon in E. coli, lactose acts as an inducer by binding to the repressor protein and preventing it from blocking transcription.


The operon that controls the metabolism of lactose is called the what?

its an operon required for the transport and metabolism of lactose.


What prevents e coli from expressing the lac genes in its DNA all of the time?

The lac genes in E. coli are regulated by the lac operon, which is controlled by a repressor protein. The repressor binds to the operator region of the DNA, blocking the transcription of the lac genes. When lactose is present, it binds to the repressor, causing a conformational change that releases the repressor from the operator, allowing for the expression of the lac genes.