Which of the Following Does Not Have a DNA-Binding Domain

Question

Which of the following does not have a DNA-binding domain?
A)sigma-factor
B)UP region
C)alpha-factor
D)beta
E)beta prime

Accepted Answer

The UP region does not have a DNA-binding domain; it is a sequence in the promoter region of genes that enhances the binding of RNA polymerase to DNA. Sigma-factor, alpha-factor, beta, and beta prime are all components or factors associated with RNA polymerase or transcription regulation that interact with DNA or RNA in various ways.