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Wiki User
∙ 11y agoGene expression is controlled by DNA located in the cell's nuclei.
Gene expression is carried out constantly because your unique traits must be maintained contantly ( for example, you don't wake up in the morning with different eye color.) The substances that make up your body (carbon, hydrogen, nitrogen, oxygen, phosphorus) link together to build your body, in exactly the way your DNA tells them to. The reason gene expression is constant, is because the building blocks of your body need to be replaced almost constantly, like if you get injured- or they simply grow old. Your body uses the recipe in your DNA to rebuild it exactly as it was before. This maintenance of your expressed traits is constant- and is executed by a complex process called protein synthesis. Cells aren't the ones who control gene expression either- it's more controlled by processes like meiosis (that creates you with the traits you'll be born with) and mitosis (that replicates cells you already have.) These processes involve cells- but gene expression is really carried out by the mechanisms of protein synthesis. Protein synthesis is a big part of replicating DNA in mitosis and meiosis to make new living cells. Protein synthesis is carried out by enzymes and nucleic acids- that direct the whole sha-bang. But I guess the exact answer to your question is this: Gene expression is controlled AT ALL TIMES at the level of cells, by enzymes- through protein synthesis. * an interesting point- is, if your enzymes mess up and do protein synthesis/mitosis incorrectly; that is what a MUTATION is.
Wiki User
∙ 13y agoThey control it with regulatory sites found on each gene, with specific regulatory proteins, and by determining when individual genes are to be transcribed.
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How do cells control gene expression?
The promoter allows the gene to be transcribed. It helps RNA polymerase find where a gene starts. An operator is a DNA segment that turns the gene "on" or "off." It interacts with proteins that increase the rate of transcription or block transcription from occurring.
In the control of gene expression in bacteria a regulatory gene a has its own promoter?
No
What can sometimes influence expression of genes?
Several factors determine the final outcome of gene expression. They include the cell's environment, the presence of other cells, and the timing of gene expression. hope this helped! -Steph
What does the operon model attempt explain?
the coordinated control of gene expression in bacteria
What is the common control point of gene expression for all organisms?
cell membrane
Can eukaryotic Cells control gene expression by using transcription factors?
yes
How do cells control gene expression?
The promoter allows the gene to be transcribed. It helps RNA polymerase find where a gene starts. An operator is a DNA segment that turns the gene "on" or "off." It interacts with proteins that increase the rate of transcription or block transcription from occurring.
The snipping out of specific introns for troponin production by muscle cells is an example of what type of gene expression control?
transcript processing
What is the gene expression?
Gene expression is the process by which inheritable information from a gene, such as the DNA sequence, is made into a functional gene product, such as protein or RNA.
In the control of gene expression in bacteria a regulatory gene a has its own promoter?
No
Benefits of medical treatments that control gene expression?
I would guess that if a gene is not functioning normally then controlling the expression of that gene would be beneficial.
Through gene expression the messages encoded in the DNA contained in a cell direct the cells activity Which of the following sentences best defines gene expression?
Gene expression is the activation of a gene that results in the formation of a protein.
What does differential gene expression mean?
The process by which different cells express different genes depending on their needs is called differential gene expression
What is involved in regulating gene expression in prokaryotes but not in eukaryotes?
The regulation of gene expression allows prokaryotic cells, such as bacteria, to better respond to stimuli and to conserve energy and materials
What can sometimes influence expression of genes?
Several factors determine the final outcome of gene expression. They include the cell's environment, the presence of other cells, and the timing of gene expression. hope this helped! -Steph
What is it called when sections of chromosomes control genes?
regulation of gene expression
What can plant hormones be characterized by?
They may act by altering gene expression. They have a multiplicity of effects. They control plant growth and development and they affect division, elongation and differentiation of cells.
