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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.
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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.
Which of the following statements best describes the promoter of a protein coding gene?
The promoter is a nontranscribed region of a gene.
What is the region where RNA polymerase binds on DNA?
The transcription initiation complex around the TATA box.
What is regulatory mutation?
A regulatory mutation is one that occurs in the promoter or operator region of a gene or set of genes and affects the expression of the downstream genes without affecting the amino acid sequences of the gene products.
What is a collective name for a group of genes involved in the same function their promoter site and their operator?
Operon
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.
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.
Which of the following statements best describes the promoter of a protein coding gene?
The promoter is a nontranscribed region of a gene.
What is promoters and an operator together called?
Operon. It contains the promoter, operator, and the structural gene.
What is the region of DNA where RNA synthesis begins called?
The region of DNA where RNA synthesis begins is the promoter. DNA contains a number of upstream regulatory and promoter sequences but the region of DNA where RNA synthesis begins is the start codon. This is the first codon that translates into an RNA nucleotide.
What is the region where RNA polymerase binds on DNA?
The transcription initiation complex around the TATA box.
Which of the statements best describes the promoter of a protein-coding gene?
The promoter is a nontranscribed region of a gene.
What is regulatory mutation?
A regulatory mutation is one that occurs in the promoter or operator region of a gene or set of genes and affects the expression of the downstream genes without affecting the amino acid sequences of the gene products.
What is the region of DNA to which RNA polymerase bind?
promoter
Transcription starts at a region of DNA called a?
According to biologists, transcription starts at a region of DNA called a promoter. Promoters bind with RNA molecules to initiate transcription.
What is a collective name for a group of genes involved in the same function their promoter site and their operator?
Operon
A mutation in this section of DNA could influence the binding of RNA polymerase to the DNA?
promoter The promoter is the region of DNA to which RNA polymerase binds to in order to initiate transcription.
