Which of the following statements about $\beta$-globin production is true?
A) A translational repressor protein binds to the $\beta$-globin and prevents ribosomes from attaching.
B) Alternative splicing of pre-mRNA results in the production of several different $\beta$-globins.
C) Transcription of the $\beta$-globin gene is determined by transcription factors, regulators, enhancers, activators, silencers, and repressors.
D) Ubiquitin forms a complex with the $\beta$-globin that causes its premature breakdown.
E) The 5´ guanosine cap added to the mRNA is the location where RNA polymerase initiates transcription.

Question

Quizplus · Accepted Answer

Transcription of genes is regulated by a variety of factors including transcription factors, regulators, enhancers, activators, silencers, and repressors. These factors bind to specific sequences of DNA near the gene, either promoting or inhibiting transcription. Therefore, statement C is the only true statement about F1F1F1S1F1F1F10-globin production. Alternative splicing (B) and the addition of a 5´ guanosine cap (E) occur during RNA processing, while translational repression (A) and ubiquitin-mediated degradation (D) occur after transcription and translation have already taken place.

Which of the Following Statements About β\betaβ -Globin Production Is True? A) a Translational Repressor Protein Binds

Which of the Following Statements About $\beta$ -Globin Production Is True?
A) a Translational Repressor Protein Binds