Abundant Synthesis of the E Protein from the Bacteriophage ϕX174

question 22

Multiple Choice

Abundant synthesis of the E protein from the bacteriophage ϕX174 would lead to premature lysis of the host cell.Which of the following mechanisms controls the synthesis of the E protein?

• A) The mRNA is transcribed from a weak promoter.
• B) The open reading frame has a weak ribosome binding site.
• C) The secondary structure of the mRNA prevents translation of the E protein.
• D) The repressor protein prevents transcription of the mRNA.
• E) There is a strong transcriptional terminator upstream of the E gene.

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