Two modular elements that appear as consensus sequences upstream from RNA polymerase II transcription start sites are _.
A) enhancers and telomeres
B) TATA and CAAT
C) rDNA and nucleolar organizers
D) microsatellites and transposons
E) TTAA and CCTT

Question

Quizplus · Accepted Answer

The TATA box and CAAT box are consensus sequences found upstream of the transcription start site in eukaryotic genes transcribed by RNA polymerase II. They play crucial roles in the initiation of transcription.

Two Modular Elements That Appear as Consensus Sequences Upstream from RNA