Scelta multipla
Which of the following is a function of RNA polymerase?
803
views
15. Gene Expression
Introduction to Transcription
Scelta multipla
Where is the promoter sequence TATAAT, also known as the TATA box, typically located in relation to the transcription start site in prokaryotic cells?
A
Approximately 35 base pairs downstream
B
Approximately 35 base pairs upstream
C
Approximately 10 base pairs downstream
D
Approximately 10 base pairs upstream
Guida verificata passo dopo passo1
Understand the role of the promoter sequence in transcription. The promoter is a region of DNA that initiates transcription of a particular gene.
Recognize the TATA box as a specific sequence within the promoter region. In prokaryotic cells, the TATA box is a conserved sequence that helps in the binding of RNA polymerase.
Identify the location of the TATA box relative to the transcription start site. In prokaryotes, the TATA box is typically found upstream of the transcription start site.
Recall that 'upstream' means towards the 5' end of the DNA, away from the direction of transcription.
Note that the TATA box is located approximately 10 base pairs upstream of the transcription start site in prokaryotic cells, which is crucial for the initiation of transcription.
Video correlati
Pratica correlata
