0
What would occur if the repressor of an inducible operon were mutated so it could not bind the operator?
Wiki User
∙ 13y ago
It would result in the continuous transcription of the operon's genes.
Wiki User
∙ 13y ago
Add your answer:
Earn +20 pts
Difference between inducible and repressible operons?
The differences between these two types of operons are significant. In the repressible operon, The product is the regulatory metabolite and starts in the "on" position allowing RNA primase to unzip mRNA. Also the repressor protein only bings to the operator gene in the presence of the regulatory metablite. In the inducible operon, The reactact is the regulartory metabolite and starts in the off position blockig the primase from unzipping mRNA. The repressor protein only binds to the operator gene in the absence of the regulatory metabolite.
Why is the tryptophan operon turned off in the presence of tryptophan?
Tryptophan binds to and activates the repressor proteins; the repressor proteins, in turn, bind to the operator, preventing transcription.
What do operons enable bacteria to do?
operon are the cluster of genes which are present to each other and having functions in realted manner as one gene is promoter which promote the function of other genes and one is operator which operates the function of structural genes whcih either synthesize certain enzyme or protein. operon can be inducible or non-inducible and negatie or positive control
What is the operon hypothesis and discuss how it explains the control of?
control of messenger RNA production? An operon is made up of a promoter, structural genes, and the operator. The operator is basically the on-off switch for DNA polymerase. Transcription relies on the cell's regulator, which codes for a repressor that bind to the operator. When the repressor binds to the operator, the promoter is blocked. Thus, preventing transcription to occur. However, an inducer can activate or deactivate the repressor. When deactivated, RNA polymerase can bind to the DNA molecule to begin transcription.
What genes is not a part of the lac operon?
repressor gene
Which region of the operon does the repressor bind to?
It binds to the operator.
What is a repressible operon?
is one that is usually on; binding of a repressor to the operator shuts off transcription
Difference between inducible and repressible operons?
The differences between these two types of operons are significant. In the repressible operon, The product is the regulatory metabolite and starts in the "on" position allowing RNA primase to unzip mRNA. Also the repressor protein only bings to the operator gene in the presence of the regulatory metablite. In the inducible operon, The reactact is the regulartory metabolite and starts in the off position blockig the primase from unzipping mRNA. The repressor protein only binds to the operator gene in the absence of the regulatory metabolite.
Why is the tryptophan operon turned off in the presence of tryptophan?
Tryptophan binds to and activates the repressor proteins; the repressor proteins, in turn, bind to the operator, preventing transcription.
In E. coli the tryprophan switches off the trp operon by?
Binding to the repressor and increasing the latter's affinity for the operator
What do operons enable bacteria to do?
operon are the cluster of genes which are present to each other and having functions in realted manner as one gene is promoter which promote the function of other genes and one is operator which operates the function of structural genes whcih either synthesize certain enzyme or protein. operon can be inducible or non-inducible and negatie or positive control
What is Corepressor and their function?
The metabolite that when bound to the repressor (of a repressible operon) forms a functional unit that can bind to its operator and block transcription.
What is the operon hypothesis and discuss how it explains the control of?
control of messenger RNA production? An operon is made up of a promoter, structural genes, and the operator. The operator is basically the on-off switch for DNA polymerase. Transcription relies on the cell's regulator, which codes for a repressor that bind to the operator. When the repressor binds to the operator, the promoter is blocked. Thus, preventing transcription to occur. However, an inducer can activate or deactivate the repressor. When deactivated, RNA polymerase can bind to the DNA molecule to begin transcription.
Where is the repressor structure coded?
operon
What region of the operon does the repressor bind to?
I assume you mean the lac operon. The repressor binds upstream of the gene(s) in the regulatory gene region.
2 types of operons?
The two types of operons are Inducible and Repressible Operons.
What genes is not a part of the lac operon?
repressor gene
