You Have Identified a 50 Nucleotide Deletion That Is Not

question 32

Multiple Choice

You have identified a 50 nucleotide deletion that is not within an open reading frame in an otherwise wild-type prokaryotic genome.You identify five mRNAs that are not translated in these mutant bacteria; the five mRNAs are transcribed from five different genes located far from the deletion.Select the most likely explanation for the effect of this deletion.

• A)The deletion is within an antisense RNA that regulates translation of all five genes.
• B)The deletion prevents expression of a small RNA that regulates translation of all five genes.
• C)The deletion removes an aptamer in an RNA leader sequence.
• D)The deletion removes an effector molecule that regulates transcription.

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