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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.
The expression of the tryptophan operon is controlled by?
a repressor that is active when it binds to tryptophan
What is a repressible operon?
is one that is usually on; binding of a repressor to the operator shuts off transcription
What is allolactose and how does it work?
Allolactose isca sugar, isomeric with lactose, that is the true inducer of the lac operon. An agent capable of activating specific genes. A molecule that inhibits the action of the repressor of an operon, preventing it from freely binding with the operator gene and disabling its function.
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.
The operon segment composed of the gene that codes for a protein repressor is called the?
The operon segment composed of the gene that codes for a protein repressor is called the regulatory gene. This gene produces the repressor protein that can bind to the operator region of the operon, preventing transcription of the structural genes when the repressor is bound.
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.
Which region of the operon does the repressor bind to?
It binds to the operator.
What genes is not a part of the lac operon?
repressor gene
How does the repressor protien prevent transcription?
it blocks the promoter from the operon.
The expression of the tryptophan operon is controlled by?
a repressor that is active when it binds to tryptophan
What acts as a co-repressor to block transcription of the tryptophan operon?
Tryptophan
What is a clue that the lac operon is on?
The lac operon uses a two-part control mechanism to ensure that the cell expends energy producing the enzymes encoded by the lac operon only when necessary. In the presence of lactose, the lac repressor halts production of the enzymes encoded by the lac operon.
The role of a metabolite that controls a repressible operon is to?
The role of a metabolite that controls a repressible operon is to
Is the lac operon the only example of genes regulated by repressor proteins?
False
