The consensus DNA sequence for a promoter is made up of two sequences that are 7 bp long. If two actual promoters in the genome each differ by 3 bases from the consensus sequence, but at different positions. Which of the following can you conclude about transcription from the two promoters?
A.Transcription levels from the two promoters will be roughly equal.
B.In both cases the transcription will be far too low to tell the difference between them.
C.One of the two will almost certainly show higher levels of transcription but it can't be guessed which one.
D.Not enough information

Question

The consensus DNA sequence for a promoter is made up of two sequences that are 7 bp long. If two actual promoters in the genome each differ by 3 bases from the consensus sequence, but at different positions. Which of the following can you conclude about transcription from the two promoters? 
A.Transcription levels from the two promoters will be roughly equal. 
B.In both cases the transcription will be far too low to tell the difference between them.
C.One of the two will almost certainly show higher levels of transcription but it can't be guessed which one.
D.Not enough information