Which events, structures, or processes are likely to trigger transcription of the beta-globin gene?
A)Anemia and TATA boxes upstream from the beta-globin gene
B)Anemia and polyadenylation downstream from the beta-globin gene
C)Polycythemia and TATA boxes upstream from the beta-globin gene
D)Polycythemia and polyadenylation downstream from the beta-globin gene

Question

Quizplus · Accepted Answer

A "TATA" box is a transcription start signal located upstream (5' to 3') of a specific gene. Anemia is a physiologic trigger that more beta globin should be synthesized. Polycythemia indicates an excess of red blood cells and no need for beta-globin production. Polyadenylation only finishes the transcription and does not signal the need to start it.

Which Events, Structures, or Processes Are Likely to Trigger Transcription