0
operon are the cluster of genes which are present to each other and having functions in realted manner as one gene is promoter which promote the function of other genes and one is operator which operates the function of structural genes whcih either synthesize certain enzyme or protein.
operon can be inducible or non-inducible and negatie or positive control
Operons allow bacteria to coordinate the expression of multiple genes that are involved in a related biochemical pathway. This enables bacteria to respond quickly and efficiently to changes in their environment by activating or repressing the expression of these genes together.
- Provide a site on the DNA where the repressor can bind and stop transcription
Add your answer:
Earn +20 pts
What organisms have operons?
Operons appear most in prokaryotes, however can also be found in some eukaryotic organisms such as the nematode. The nature of this is because operons produce polycistronic mRNA, which is used mostly by bacteria, whereas eukaryotes use monocistronic mRNA.
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.
Are hox genes regulated by operons?
No, hox genes are not regulated by operons. Operons are found in prokaryotes and involve a group of genes that are transcribed together under the control of a single promoter. Hox genes are a group of eukaryotic genes that play a key role in embryonic development and are regulated by complex mechanisms involving enhancers and other regulatory elements.
The organelles that enable white blood cells to ingest and destroy bacteria are?
The organelles that enable white blood cells to ingest and destroy bacteria are called lysosomes. Lysosomes contain digestive enzymes that help break down the ingested bacteria into harmless components. This process is known as phagocytosis, which is a key mechanism in the immune response to eliminate pathogens.
Difference between inducible and repressible operons?
Inducible operons are normally turned off but can be turned on by an inducer molecule, such as lactose in the lac operon. Repressible operons are typically turned on but can be turned off by a corepressor molecule, like tryptophan in the trp operon. The key difference is in their default state and the signal that controls their activity.
What organisms have operons?
Operons appear most in prokaryotes, however can also be found in some eukaryotic organisms such as the nematode. The nature of this is because operons produce polycistronic mRNA, which is used mostly by bacteria, whereas eukaryotes use monocistronic mRNA.
2 types of operons?
The two types of operons are Inducible and Repressible Operons.
Why have no operons been found in eukaryotic cells?
Operons are not common in eukaryotic cells because eukaryotic genes are typically regulated individually by diverse mechanisms such as transcription factors, enhancers, and silencers. Eukaryotic gene expression is more complex and often involves tissue-specific regulation, post-transcriptional modifications, and chromatin remodeling, which are not typical features of prokaryotic operons.
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 organelles enable white blood cells to digest and destroy bacteria are?
lysosomes
What substances should be added to a bio reactor to enable bacteria to grow?
Methionine
Who used a simple microscope which enable him to discover protozoa and bacteria?
Anton van leeuwenhoek
How mutant organism assist scientists in understanding how normal physiological processes take place?
understanding of how operons are controlled was achieved by the "knockout" mutants- that each lacked one of the genes in the operons and its regulatory region.
Are hox genes regulated by operons?
No, hox genes are not regulated by operons. Operons are found in prokaryotes and involve a group of genes that are transcribed together under the control of a single promoter. Hox genes are a group of eukaryotic genes that play a key role in embryonic development and are regulated by complex mechanisms involving enhancers and other regulatory elements.
Eukaryotic DNA sequences called enhancers have a function similar to the of prokaryotic operons?
Enhancers in eukaryotic DNA regulate gene expression by binding to transcription factors and promoting the initiation of transcription. Prokaryotic operons are functioning units of genes that are coordinately regulated and transcribed together. Both enhancers in eukaryotes and operons in prokaryotes play a role in regulating gene expression.
Is the lac operon found in prokaryotes or eukaryotes?
The lac operon is found in prokaryotes, specifically in bacteria such as Escherichia coli. It is a regulatory system that controls the expression of genes involved in lactose metabolism. Eukaryotic cells do not typically have operons like the lac operon.
The organelles that enable white blood cells to ingest and destroy bacteria are?
The organelles that enable white blood cells to ingest and destroy bacteria are called lysosomes. Lysosomes contain digestive enzymes that help break down the ingested bacteria into harmless components. This process is known as phagocytosis, which is a key mechanism in the immune response to eliminate pathogens.
