Consider a mutation in -10 BOX promoter consensus sequence (TATAAT) in the prokaryote recA gene where the first T base mutated to G, what outcome(s) are likely?   a. transcription levels will increase as the GC content would increase b. this mutation is silent, so no change in transcription level c. transcription levels would decrease because the promoter would be weaker d. transcription levels do not depend on the promoter sequence for the gal gene e.

Human Heredity: Principles and Issues (MindTap Course List)
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Chapter10: From Proteins To Phenotypes
Section: Chapter Questions
Problem 21QP: Transcriptional regulators are proteins that bind to promoters (the 5-flanking regions of genes) to...
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Consider a mutation in -10 BOX promoter consensus sequence (TATAAT) in the prokaryote recA gene where the first T base mutated to G, what outcome(s) are likely?

 

a.

transcription levels will increase as the GC content would increase

b.

this mutation is silent, so no change in transcription level

c.

transcription levels would decrease because the promoter would be weaker

d.

transcription levels do not depend on the promoter sequence for the gal gene

e.

nothing would happen because the promoter would not change the mRNA sequence

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