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So in Transcription there are three main steps: Initiation, elongation and termination. The one I'm focusing on is Initiation.
In eukaryote, proteins called transcription factors mediate the initiation of transcription by RNA Polymerse II.
A eukaryotic promoter commonly includes a TATA box, a nucleotide sequence containing "Thymine-Adenine-thymine-adenine", about 25 nucleotides upstream from the transcriptional start point.
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When does transcription begins prokaryotic cell?
In Prokaryotic Cells transcription and translation can occur simultaneously, but transcription happens after a transcription initiation complex has been formed.
What event in transcription initiation likely occurs last?
The binding of RNA polymerase to the promoter sequence is the likely event that occurs last in transcription initiation. This binding allows for the initiation of RNA synthesis and the subsequent elongation of the RNA molecule.
Does initiation of transcription require a primer?
no because RNA polymerase can do the same thing
What are the phases of transcription?
Initiation - Polymerase III, binds and unwinds DNA, transcription begins. Elongation - Base pairng occurs polymerase I, binds the new strands of mRNA. Termination - New mRNA released.
Which step in what procedure represents transcription?
Transcription is the process of synthesizing messenger RNA (mRNA) from DNA. It occurs in the nucleus of the cell and involves three main steps: initiation, elongation, and termination. The initiation step involves the binding of RNA polymerase to the promoter region of the DNA.
When does transcription begins prokaryotic cell?
In Prokaryotic Cells transcription and translation can occur simultaneously, but transcription happens after a transcription initiation complex has been formed.
What event in transcription initiation likely occurs last?
The binding of RNA polymerase to the promoter sequence is the likely event that occurs last in transcription initiation. This binding allows for the initiation of RNA synthesis and the subsequent elongation of the RNA molecule.
Does initiation of transcription require a primer?
no because RNA polymerase can do the same thing
What are the phases of transcription?
Initiation - Polymerase III, binds and unwinds DNA, transcription begins. Elongation - Base pairng occurs polymerase I, binds the new strands of mRNA. Termination - New mRNA released.
Which step in what procedure represents transcription?
Transcription is the process of synthesizing messenger RNA (mRNA) from DNA. It occurs in the nucleus of the cell and involves three main steps: initiation, elongation, and termination. The initiation step involves the binding of RNA polymerase to the promoter region of the DNA.
The correct sequence of the events of transcription is?
RNA polymerase reaches the beginning of a gene.
Does eukaryotic transcription begin before the promoter clearance?
No, Eukayotic transcription begins after promoter clearance. Promoter clearance just prepares the transcription initiation complex to begin elongation. Promoter clearance does not produce any functional gene.
What are the two jobs that RNA polymerase performs?
transcription: produces RNA, initiation and elongation of RNA chains from a DNA template
In both eukaryotes and prokaryotes gene experssion is primarliy regulated at the level of?
Gene expression can be controlled at any of several stages, which we divide broadly into transcription, processing and translation. Transcription often is controlled at the stage of initiation, or at termination but usually not controlled at elongation. In eukaryotic cells, processing of the RNA product may be regulated at the stages of modification, splicing, transport, or stability. Translation may be regulated, usually at the stages of initation and termination just like transcription. Gene expression can be controlled at any of several stages, as during transcription, processing and translation. Transcription often regulated at initiation and termination but elongation is usually not regulated. In eukaryotes cells, processing of the RNA product may be regulated at the stages of modification, splicing, transport, or at stability. Translation may be regulated at initiation and termination just like transcription.
What processes use RNA?
There are three stages where RNA transcription occurs. They are initiation, chain elongation, and termination. All are very important in the cell.
What is the function of the TATA box?
The TATA box assists in directing RNA polymerase II to the initiation site downstream on DNA. RNA polymerases bind to regions of DNA known as promoters. Promoter regions are comprised of the initiation site and numerous nucleotides upstream from the initiation site. The TATA box is necessary for transcription because RNA polymersase II cannot recognize the initiation sites on its own.
What is the first step in protein synythesis?
The first step of protein synthesis is transcription, where the DNA "unzips" to direct the production of a strand of messenger RNA (mRNA). This carries the instructions for the production of protein to the ribosome. Transcription is further divided into three stages: into 3 stages: initiation, elongation, and termination.
