Which of the following is a feature of transcription activation?
A)A nucleotide sequence binding site for a DNA-binding protein serves as an activator site if DNA-binding protein can interact with promoter-bound RNA polymerase.
B)It takes place when a transcriptional activator protein bound to DNA makes protein:RNA contacts with RNA polymerase.
C)The degree of transcriptional activation is inversely proportional to the strength of the protein:protein interaction.
D)If the DNA-bound transcriptional activator makes contact with 2 different components of RNA polymerase,the transcription is markedly reduced.

Question

Quizplus · Accepted Answer

Transcription activation occurs when a DNA-binding protein, called a transcriptional activator, binds to a specific nucleotide sequence on DNA called an activator site. The activator site is usually located upstream of the promoter region where RNA polymerase binds to initiate transcription. The transcriptional activator can interact with promoter-bound RNA polymerase to increase transcriptional initiation, which leads to higher levels of mRNA synthesis. Thus, option A is the correct feature of transcription activation. Options B, C, and D are incorrect because they do not accurately describe the process of transcription activation.

Which of the Following Is a Feature of Transcription Activation