Which of the Following is a Conserved Sequence Motif That

Question

Which of the following is a conserved sequence motif that can help define eukaryotic promoters?
A) TGA
B) GATA box
C) splicing junction
D) polyadenylation signal
E) CAAT box

Accepted Answer

The CAAT box is a conserved sequence motif found in many eukaryotic promoters. It is a DNA sequence of about 5-7 nucleotides (GGCCAATCT) that is located upstream of the transcription start site. The CAAT box helps in binding of the transcription factors and RNA polymerase II to the promoter region.