Mutagenic studies of the promoter region of the β-globin gene indicate that some areas are more likely than mutations in other areas to affect transcription rates.When mutations occur in consensus sequences (modular elements such as GC box,CAAT box,TATA box),does transcription increase or decrease?

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The Answer of Mutagenic studies of the promoter region of the β-globin gene indicate that some areas are more likely than mutations in other areas to affect transcription rates.When mutations occur in consensus sequences (modular elements such as GC box,CAAT box,TATA box),does transcription increase or decrease?

Mutagenic Studies of the Promoter Region of the β-Globin Gene