Question

10. Transcription factors that are activators do what?
a. Bind DNA and block transcription.
b. Do not bind DNA, but activate RNA polymerase.
c. Do not bind DNA, but block transcription.
d. Bind DNA which helps other proteins, like RNA polymerase, bind DNA​

Answer 1

transcriptional activator is a protein (transcription factor) that increases transcription of a gene or set of genes. Activators are considered to have positive control over gene expression, as they function to promote gene transcription and, in some cases, are required for the transcription of genes to occur.

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Answer 2

Answer:

option (d) is correct.

Explanation:

For gene transcription to occur, a number of transcription factors must bind to DNA regulatory sequences. this collection of transcription factors, in turn , recruit intermediary proteins such as cofactors that allow efficient recruitment of the preinitiation complex and RNA polymerase.