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MaxineNo, initiation of transcription does not require a primer. Transcription begins at the promoter region of a gene, where RNA polymerase binds and starts synthesizing a complementary RNA strand using the template DNA strand. In contrast, DNA replication requires a primer to initiate synthesis.
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What helps position the initiation complex on the promoter?
Transcription factors bind to specific DNA sequences in the promoter region, helping to position the initiation complex. These transcription factors recruit RNA polymerase to the promoter, facilitating the assembly of the initiation complex. The correct positioning of the initiation complex is essential for the efficient initiation of transcription.
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.
What is initiation in transcription?
Initiation in transcription is the beginning stage where RNA polymerase binds to the promoter region of a gene and starts unwinding a section of DNA to synthesize a complementary RNA molecule. This process is crucial for the initiation of gene expression and the production of mRNA.
What is the key words of transcription?
The key steps of transcription are initiation, elongation, and termination. During initiation, RNA polymerase binds to the promoter region of DNA. Then, during elongation, the RNA polymerase synthesizes an RNA copy of the DNA template. Finally, termination signals the end of transcription and release of the RNA transcript.
When does transcription begins prokaryotic cell?
Transcription in prokaryotic cells begins when RNA polymerase binds to the promoter region of a gene. This binding allows RNA polymerase to start synthesizing mRNA based on the DNA template strand. The initiation of transcription is a critical step that involves recognizing specific DNA sequences and recruiting necessary factors for gene expression.
