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What is turned on or off by regulatory proteins?
Regulatory proteins turn on or off gene expression by binding to specific regions of DNA called promoters or enhancers. They can either activate or repress the transcription of genes by recruiting other proteins that help modify the chromatin structure or by directly interacting with the RNA polymerase complex.
What is fuction of operator region in operon?
The operator region in an operon functions as a regulatory switch that controls the transcription of the associated genes. It is a specific DNA sequence where repressor proteins can bind, inhibiting RNA polymerase from initiating transcription. When a repressor is bound to the operator, gene expression is turned off; conversely, when the repressor is absent or inactivated, transcription can proceed, allowing the genes to be expressed. This mechanism is crucial for the efficient regulation of gene expression in prokaryotic cells.
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.
What genetic process is believed to account for the variety of cellular structures and functions in eukaryotic cells?
The process of gene expression, which includes transcription and translation, plays a key role in the diversity of cellular structures and functions in eukaryotic cells. By controlling which genes are turned on or off, cells can produce different proteins and regulatory molecules that give rise to specialized structures and functions. Additionally, alternative splicing and post-translational modifications further contribute to this diversity.
What are non protein amino acids in the human body and their importace?
Amino acids are the building blocks of proteins (long chains of amino acids). They get turned into proteins.
What is turned on or off by regulatory proteins?
Regulatory proteins turn on or off gene expression by binding to specific regions of DNA called promoters or enhancers. They can either activate or repress the transcription of genes by recruiting other proteins that help modify the chromatin structure or by directly interacting with the RNA polymerase complex.
How is a non-constituative gene turned off?
repressor proteins block the gene physically and prevent transcription from occurring
What is fuction of operator region in operon?
The operator region in an operon functions as a regulatory switch that controls the transcription of the associated genes. It is a specific DNA sequence where repressor proteins can bind, inhibiting RNA polymerase from initiating transcription. When a repressor is bound to the operator, gene expression is turned off; conversely, when the repressor is absent or inactivated, transcription can proceed, allowing the genes to be expressed. This mechanism is crucial for the efficient regulation of gene expression in prokaryotic cells.
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.
What is a fuctions of a gene?
The function of a gene (a segment of DNA) is to code for traits to produce genetically different offspring. Through transcription and translation, genes are turned into proteins that make us who we are. Hope that helps!
What is the process in which DNA nitrogen bases are turned into RNA nitrogen bases?
transcription
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 meant by regulatable promoter?
A promoter is a genetic element that is the recognition site for transcription on a strand of DNA. Promotors may be constitutively active or selective. A regulatable promotor is one that can be turned on and off.
Do The actions of DNA binding proteins help to determine whether a gene is turned on or off?
Yes, DNA binding proteins can influence gene expression by binding to specific sites on the DNA and either promoting or inhibiting gene transcription. These proteins can act as activators to enhance gene expression or repressors to suppress gene expression, thus controlling whether a gene is turned on or off.
What is a transcription and where does it occur?
transcription is the act of DNA being 'transcribed' into mRNA inside the nucleus. Afterwards, the head and tail of the mRNA get capped with a poly-A tail and a 5 prime cap in RNA processing, so that the mRNA doesnt get recognizede as a dangerous molecule. There, it is then shipped of out of the nucleus where the mRNA gets translated into tRNA in the ribosome to produce amino acids which will eventually be turned into proteins
Why are Zinc fingers important in cellular regulation?
Zinc fingers are important in cellular regulation because they are specific protein domains that can bind to specific DNA sequences, allowing them to regulate gene expression. This ability to bind to DNA helps control which genes are turned on or off, influencing various cellular processes such as growth, development, and differentiation.
What genetic process is believed to account for the variety of cellular structures and functions in eukaryotic cells?
The process of gene expression, which includes transcription and translation, plays a key role in the diversity of cellular structures and functions in eukaryotic cells. By controlling which genes are turned on or off, cells can produce different proteins and regulatory molecules that give rise to specialized structures and functions. Additionally, alternative splicing and post-translational modifications further contribute to this diversity.
