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Gene expression in general can be controlled at any steps from transcription, RNA prcoessing to post translational modification. Repressor proteins bind promoter to stop the gene expression in nucleus. siRNA and shRNA known to interfere in protein synthesis in cytosol. Hormones are known to regulate thorugh signalling cascade.
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What gene controls the expression of the D1x gene in vertebrates?
The D1x gene is controlled by the Pou4f1 gene in vertebrates. Pou4f1 is a transcription factor that regulates the expression of D1x in the developing nervous system.
Describe at what level gene expression is generally controlled?
Gene expression is generally controlled at the transcriptional level, where DNA is transcribed into RNA by RNA polymerase. Transcriptional regulation involves the binding of transcription factors and other regulatory proteins to specific DNA sequences, influencing the rate of transcription initiation. This mechanism allows cells to control the amount of specific proteins produced based on their needs.
How many alleles is a gene controlled by?
A gene is controlled by two alleles, one inherited from each parent. These alleles can be the same (homozygous) or different (heterozygous), influencing the expression of the gene and determining an individual's specific traits.
What can stop gene expression?
Gene expression can be stopped by transcription factors binding to the promoter region of a gene, thus preventing RNA polymerase from transcribing the gene. Additionally, epigenetic modifications like DNA methylation and histone deacetylation can inhibit gene expression by altering chromatin structure and making the gene inaccessible for transcription. Other factors such as microRNAs can also interfere with gene expression by degrading mRNA molecules or blocking their translation into proteins.
What is involved in regulating gene expression in prokaryotes but not in eukaryotes?
In prokaryotes, gene expression can be regulated directly at the level of transcription through operons, where multiple genes are controlled by a single promoter. This type of regulation is not as common in eukaryotes, where gene expression is typically regulated at multiple levels, including transcription, RNA processing, translation, and post-translational modifications. Additionally, prokaryotes lack the complexity of chromatin structure found in eukaryotic cells, which can also impact gene expression regulation.
How is gene expression controlled?
name the genetic disorders
Without regulatory sites the expression of a gene would not be controlled?
false
What gene controls the expression of the D1x gene in vertebrates?
The D1x gene is controlled by the Pou4f1 gene in vertebrates. Pou4f1 is a transcription factor that regulates the expression of D1x in the developing nervous system.
Describe at what level gene expression is generally controlled?
Gene expression is generally controlled at the transcriptional level, where DNA is transcribed into RNA by RNA polymerase. Transcriptional regulation involves the binding of transcription factors and other regulatory proteins to specific DNA sequences, influencing the rate of transcription initiation. This mechanism allows cells to control the amount of specific proteins produced based on their needs.
How many alleles is a gene controlled by?
A gene is controlled by two alleles, one inherited from each parent. These alleles can be the same (homozygous) or different (heterozygous), influencing the expression of the gene and determining an individual's specific traits.
What is The expression of a gene is called?
The expression of a gene is called the phenotype.
What is the difference between gene expression and protein expression, and how do they relate to each other in the process of cellular function?
Gene expression refers to the process by which information from a gene is used to create a functional product, such as a protein. Protein expression, on the other hand, specifically refers to the production of proteins from the genetic information encoded in genes. In the process of cellular function, gene expression is the first step where the information in a gene is transcribed into messenger RNA (mRNA), which is then translated into a protein through protein expression. Proteins are essential for carrying out various functions in a cell, so the relationship between gene expression and protein expression is crucial for the proper functioning of cells.
How is transcription related to gene expression and how do they influence each other?
Transcription is the process where genetic information in DNA is copied into RNA. This RNA is then used to make proteins, which are essential for gene expression. Gene expression refers to the process where the information in a gene is used to create a functional product, like a protein. Transcription is a key step in gene expression because it produces the RNA needed to make proteins. Therefore, transcription and gene expression are closely related and influence each other in the process of creating proteins from genetic information.
Will a A trait controlled by a dominant gene be expressed even if the instructions of the corresponding gene in the other half of the pair are different?
Yes, if a trait is controlled by a dominant gene, it will be expressed regardless of the instructions of the corresponding gene in the other half of the pair. Dominant genes only require one copy to be expressed in the phenotype.
What do activators do in transcription and how do they regulate gene expression?
Activators are proteins that bind to specific DNA sequences near a gene and enhance the transcription process. They regulate gene expression by recruiting other proteins, such as RNA polymerase, to the gene, thereby increasing the rate of transcription. This ultimately leads to higher levels of gene expression.
What codes for protein in the process of gene expression?
In the process of gene expression, the gene codes for protein.
Can you explain the difference between constitutive and conditional expression of a gene?
The constitutive expression of a gene means that the gene is always turned on and producing its protein, regardless of the cell's environment. On the other hand, conditional expression means that the gene is only turned on in specific conditions or in response to certain signals.
