The Pribnow box of E. coli
A. is centered approximately 10 bp upstream of the start site of transcription.
B. is centered between 7 and 13 bp upstream of the start codon.
C. is located at the site of addition of poly (A) in eukaryotic mRNAs.
D. is centered approximately 35 bp upstream of the start site of transcription.
Answer: A
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