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Repressor
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When genes are copied in transcription the resulting copy is in the form of a?
mRNA
How prokaryotes control gene expression?
The operon often controls the transcription of prokaryote genes.
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.
What part of a DNA molecule contains the instruction of making chromosome packaging proteins?
In prokaryotes the genes directly specify proteins.In eukaryotes the exons within the genes specify proteins, the introns within the genes are noncoding DNA that alternate with exons and are spliced out in the process of transcription to messenger RNA.
How do chromatin-remodeling complexes recognize the genes they should act on?
Chromatin-remodeling complexes recognize specific transcription factors bound to regulatory sequences of DNA.
What controls the transcription of prokaryotic genes?
The operon often controls the transcription of prokaryote genes.
Which is true of transcription factors?
They control which genes are expressed.
The transcription and translation of genes into proteins is called?
encoding.
When genes are copied in transcription the resulting copy is in the form of a?
mRNA
Why do promoters need to be transferred along with desired genes in gene technology?
to ensure the genes are identical
Transcription of the structural genes in an inducible operon?
starts when the pathway's substrate is present
What is a set of genes whose transcription is regulated by an operator gene is called?
Operon
What is produced when gene transcription occurs?
Genes are transcribed onto an mRNA molecule.
How prokaryotes control gene expression?
The operon often controls the transcription of prokaryote genes.
The TATA box in eukaryotes helps to ensure transcription true or false?
True, the TATA box helps ensure transcription in prokaryotes and eukaryotes. It is found in the promoter region of genes.
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.
In the central theory of genes expression what is the process of making mrna from the code in DNA called?
A+LS= Transcription
