Question

A eukaryotic promoter can be identified by the presence of what?

Select one:

a. -35 and -10 consensus sequences

b. -25 TATA box

c. The open reading frame starting at AUG

d. The +1 transcriptional start site

e. the shine dalgarno sequence

Answer 1

Answer=
b. -25 TATA box
Many eukaryotic genes have a conserved promoter sequence called the TATA box, located 25 to 35 base pairs upstream of the transcription start site. Transcription factors bind to the TATA box and initiate the formation of the RNA polymerase transcription complex, which promotes transcription.
In eukaryotes, the TATA box is located 25 base pair (-25) upstream of the start site that Rbp7 use to initiate transcription.
d.+1 transcriptional start site

-35 and -10 consensus sequence , shine dalgarno sequence are part of bacterial promoter.

Open reading frame starting at AUG in case of eukaryotic promoter but not always.