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What is an operon and in what type of cell would they be found?
An operon is a cluster of genes under the control of a single promoter in prokaryotic cells. They are typically found in bacteria and archaea, where they allow for coordinated regulation of gene expression by sharing regulatory elements.
What does the operon model attempt explain?
The operon model attempts to explain how genes are regulated in prokaryotic cells. It describes how genes are grouped together into operons, which are clusters of genes that are transcribed together as a single mRNA molecule. The model also explains how the expression of these operons is controlled by regulatory elements such as promoters, repressors, and activators.
What do prokaryotic and eukaryotic cells use to turn certain genes on or off?
Prokaryotic cells use regulatory proteins like repressors or activators that bind to the DNA to turn genes on or off. Eukaryotic cells use a combination of transcription factors, chromatin remodeling complexes, and non-coding RNAs to regulate gene expression.
What is the term that refers to a contiguous genetic complex that is under coordinate control?
The term that refers to a contiguous genetic complex that is under coordinate control is "operon." It consists of a promoter, operator, and structural genes that function together in prokaryotic cells to regulate gene expression.
How can cells regulate gene expression to control their functions and responses?
Cells can regulate gene expression by turning genes on or off, controlling the amount of proteins produced. This process helps cells control their functions and responses to different signals and environments.
What is a set of prokaryotic genes that are regulated and transcribed as a unit?
A set of prokaryotic genes that are regulated and transcribed as a unit is called an operon. In prokaryotes, operons consist of multiple genes that are transcribed together into a single mRNA molecule under the control of a single promoter. This allows for coordinated expression of genes involved in related functions.
Do prokaryotic genes have introns?
No, prokaryotic genes do not have introns.
How do prokaryotic cells turn genes on and off?
it likes chicken then not its like turning it off and on
What is the role of operons in prokaryotic organisms?
Operons are functional units in prokaryotic DNA that consist of a cluster of genes controlled by a single promoter. They allow for coordinated regulation of gene expression, as all genes in the operon are transcribed together as a single mRNA molecule. This can help prokaryotic organisms respond quickly to changing environmental conditions.
Can eukaryotic Cells control gene expression by using transcription factors?
Yes, eukaryotic cells can control gene expression using transcription factors. Transcription factors are proteins that regulate the transcription of specific genes by binding to DNA and either promoting or inhibiting gene expression. They play a crucial role in controlling when and where genes are turned on or off in response to various signals and cellular conditions.
The stuff of the genes?
Genes are made up of DNA, which carries the instructions for building and maintaining an organism's cells and tissues. They determine an organism's traits and characteristics through the expression of specific proteins. Gene expression is regulated by various mechanisms that control when and where specific genes are turned on or off.
What mechanisms are used to coordinately control the expression of multiple related gebes in eukaryoutic cells?
Eukaryotic cells use transcription factors, which are proteins that bind to specific DNA sequences, to coordinately control the expression of multiple related genes. These transcription factors can either activate or repress the expression of multiple genes at once through binding to common regulatory sequences, such as enhancers or silencers. Additionally, chromatin structure and modifications play a crucial role in regulating the accessibility of DNA to transcription factors and the transcription machinery.
