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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
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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.
Are hox genes regulated by operons?
No
What is the function of endospore in a cell?
Endospores enable bacteria to lie dormant for extended periods
The organelles that enable white blood cells to ingest and destroy bacteria are?
Lysosomes (this is for a biology final?)
Difference between inducible and repressible operons?
The differences between these two types of operons are significant. In the repressible operon, The product is the regulatory metabolite and starts in the "on" position allowing RNA primase to unzip mRNA. Also the repressor protein only bings to the operator gene in the presence of the regulatory metablite. In the inducible operon, The reactact is the regulartory metabolite and starts in the off position blockig the primase from unzipping mRNA. The repressor protein only binds to the operator gene in the absence of the regulatory metabolite.
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?
Pathogenic bacteria have evolved many toxins to attack eukaryotic cells and many of these have had valuable practical
Do mitochondria have introns?
No, prokaryotes do not have introns, and therefore do not do RNA processing. However, eukaryotes do.
Are hox genes regulated by operons?
No
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
What is the function of endospore in a cell?
Endospores enable bacteria to lie dormant for extended periods
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.
The organelles that enable white blood cells to ingest and destroy bacteria are?
Lysosomes (this is for a biology final?)
Eukaryotic DNA sequences called enhancers have a function similar to the of prokaryotic operons?
Eukaryotic DNA sequences called enhancers have a function similar to the operators of prokaryotic operons. In eukaryotic cells, repressor proteins inhibit transcription by binding to silencers.
