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change in DNA that caused sickle cell disease

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What role do constitutive genes play in the regulation of gene expression?

Constitutive genes are always active and help maintain basic cellular functions. They provide a foundation for gene expression regulation by influencing the availability of cellular resources and setting a baseline for other genes to build upon.


Who was the operon model of the regulation of gene expression in bacteria was proposed by?

The operon model of gene regulation in bacteria was proposed by François Jacob and Jacques Monod in 1961. They introduced the concept of operons, which are clusters of genes with related functions that are regulated together. This model has since become fundamental to our understanding of gene regulation in prokaryotic organisms.


Do bacteria have RNA and how does it contribute to their biological functions?

Yes, bacteria have RNA, which plays a crucial role in their biological functions. RNA helps in protein synthesis, gene regulation, and other essential processes within bacterial cells.


Are promoters cis or trans-acting in gene regulation?

Promoters are cis-acting in gene regulation.


What is the role of introns in gene regulation?

Introns do not play a direct role in gene regulation, but they can affect gene expression by influencing alternative splicing, mRNA processing, and RNA stability. Certain introns contain regulatory elements that can impact the level of gene expression by affecting the efficiency of transcription and translation.


How do enhancers increase transcription in gene regulation?

Enhancers increase transcription in gene regulation by binding to specific transcription factors, which then interact with the promoter region of a gene. This interaction helps to recruit RNA polymerase and other transcriptional machinery, leading to an increase in the rate of transcription of that gene.


What is the definition of constitutive gene expression and how does it differ from other types of gene regulation?

Constitutive gene expression refers to genes that are constantly active and produce proteins at a steady rate in a cell. This type of gene expression is not influenced by external factors or signals. In contrast, other types of gene regulation involve genes that are turned on or off in response to specific signals or conditions in the cell's environment.


Why is control of genes expression necessary?

Regulation of gene expression is necessary because organisms need to be able to adapt to their environments and perform different functions.


Where might one go to learn more about gene regulation?

Wikipedia has many articles on the subject of gene regulation. One could also borrow or look up gene regulation in text books from their local library. Many university professors also post their lectures and notes on gene regulation online for everyone to view.


What are functions of proteins in organisms?

Proteins serve various functions in organisms, such as structural support, enzymatic catalysis, transportation of molecules, immune response, and regulation of gene expression. They are essential for growth, repair, and maintenance of cells and tissues in the body.


A typical gene contains the instructions for making a?

A typical gene contains the instructions for making a specific protein. Proteins carry out various functions within cells and are essential for the structure, function, and regulation of the body's tissues and organs.


What is Cell regulation conducted by?

Cell regulation is conducted by a variety of mechanisms, including signaling pathways, gene expression regulation, and protein modifications such as phosphorylation. These mechanisms help ensure that cells respond appropriately to different internal and external cues to maintain homeostasis and carry out specific functions.