0
starts when the pathway's substrate is present
Wiki User
∙ 12y ago
Add your answer:
Earn +20 pts
What would occur if the repressor of an inducible operon were mutated so it could not bind the operator?
It would result in the continuous transcription of the operon's genes.
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
An operon is composed of?
An operon is a group of genes that operate together.Operon- a functioning unit of genomic DNA containing a cluster of genes under the control of a single regulatory signal or promoter.Operons are clusters of genes consisting of one operator and promoter. There are a lac operon, which is responsible for metabolism of glucose. And there is also the Trp operon, which is responsible for synthesising tryptophan.
What are the three components of an operon and there roles?
Holy crud, are you in AP Biology too?Anyway... take the trp operon, for instance. Its components are...Five Structural Genes:These genes contain the genetic code for the five enzymes in the Trp synthesis pathwayOne Promoter:DNA segment where RNA polymerase binds and starts transcriptionOne Operator:DNA segment found between the promoter and structural genes. It determines if transcription will take place. If the operator is turned "on", transcription will occur.
What is a non polar mutation?
a mutation in a gene that does not affect the downstream genes in an operon. ie. a polar mutation is one that DOES affect the transcription or translation of genes in the same operon downstream of your gene of interest.
What would occur if the repressor of an inducible operon were mutated so it could not bind the operator?
It would result in the continuous transcription of the operon's genes.
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 controls the transcription of prokaryotic genes?
The operon often controls the transcription of prokaryote genes.
An operon is composed of?
An operon is a group of genes that operate together.Operon- a functioning unit of genomic DNA containing a cluster of genes under the control of a single regulatory signal or promoter.Operons are clusters of genes consisting of one operator and promoter. There are a lac operon, which is responsible for metabolism of glucose. And there is also the Trp operon, which is responsible for synthesising tryptophan.
What is a set of genes whose transcription is regulated by an operator gene is called?
Operon
What are the three components of an operon and there roles?
Holy crud, are you in AP Biology too?Anyway... take the trp operon, for instance. Its components are...Five Structural Genes:These genes contain the genetic code for the five enzymes in the Trp synthesis pathwayOne Promoter:DNA segment where RNA polymerase binds and starts transcriptionOne Operator:DNA segment found between the promoter and structural genes. It determines if transcription will take place. If the operator is turned "on", transcription will occur.
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 three adjacent structural genes does the Iac operon consist of?
The lac operon which facilitates or enables lactose digestion to take place has three adjacent structural genes. These genes include lacZ, lacY and lacA. They all have their own unique purpose.
How prokaryotes control gene expression?
The operon often controls the transcription of prokaryote genes.
What is a non polar mutation?
a mutation in a gene that does not affect the downstream genes in an operon. ie. a polar mutation is one that DOES affect the transcription or translation of genes in the same operon downstream of your gene of interest.
Is operon the sequence of bases on a gene that does not code for protein?
operon is a group of genes regulated by a single promoter and operator. . . generally all the genes (structural genes of a particular operon) regulate a specific metabolic pathway. . (eg : lac operon in bacteria; where 3 genes are regulated by a single promoter sequece which help in the catabolism of lactose). . . if you have any doubts mail me at vegi.chaitanya@gmial.com
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.
