Transcription 1 Flashcards
What polymerase binds to a specific sequence of nucleotides called the promoter
RNA
Does RNA polymerase need a primer for transcription
No
What is the promoter in eukaryotes
TATA box
WHat does RNA polymerase begin to do
Unwind the DNA
RNA polymerase doesn’t require a free ….. OH group to initiate synthesis
3’ OH
The promoter box is usually located where
25 Nucelotides upstream from the actual transcriptional start point
In bacteria, describe the relationship between the promoter and the RNA polymerase
Part of the RNA polymerase itself specifically recognises and binds to the promoter
In eukaryotes, what must first bind to the promoter for the RNA polymerase 2 to bind
Transcription factors
What does the transcription factor, TATA box and promoter all form
Transcription initiation complex
What is the transcription unit
Stretch of DNA downstream from the promoter that is transcribed into an RNA molecule
What is downstream
Direction of transcription. Template strand is 3’ to 5’
First stage of transcription is
Initiation
