In Order for Transcription to Begin,the DNA-Duplex Must Be "Opened

question 55

Multiple Choice

In order for transcription to begin,the DNA-duplex must be "opened" to allow RNA polymerase access to single-stranded template.Which of the following facilitates "opening" of DNA-duplex?

• A)high melting temperature,Tm,in the Pribnow box
• B)G:C-rich DNA duplex
• C)binding of RNA polymerase s-subuni
• D)positive supercoiling

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