The -10 and -35 Boxes Found in Most Bacterial Promoter

question 52

Multiple Choice

The -10 and -35 boxes found in most bacterial promoter elements were discovered by:

• A)comparing the DNA sequences in front of highly expressed genes and determining nucleic acids that were common (consensus).
• B)the finding that RNA polymerase begins translation when a 10-nucleotide followed by a 35-nucleotide repeat of guanine ("G")are encountered.
• C)comparing bacterial promoters to known eukaryotic promoters.
• D)examining data from the human genome project.
• E)Robert Koch as he characterized the microbe that causes tuberculosis.

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