Multiple Choice
Is polycistronic mRNA found in prokaryotic transcription or eukaryotic transcription?
5. DNA to RNA to Protein
DNA Transcription
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Transcription initiation requires many factors, which of the following is not one of them?
A
RNA polymerase
B
Mediator
C
Inr initiation sequence
D
Elongation factors
Verified step by step guidance1
Understand the process of transcription initiation: Transcription initiation is the first step in gene expression where the DNA sequence is transcribed into RNA. This process requires several components to start the synthesis of RNA.
Identify the key components involved in transcription initiation: Typically, transcription initiation involves RNA polymerase, transcription factors, and specific DNA sequences such as promoters and enhancers.
Examine the role of RNA polymerase: RNA polymerase is crucial for transcription initiation as it binds to the DNA and catalyzes the synthesis of RNA from the DNA template.
Explore the function of the Mediator complex: The Mediator is a multi-protein complex that facilitates the interaction between transcription factors and RNA polymerase, aiding in the assembly of the transcription machinery.
Clarify the role of elongation factors: Elongation factors are involved in the elongation phase of transcription, not initiation. They assist RNA polymerase in transcribing the DNA into RNA after the initiation phase is complete.
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