The segments of DNA where transcription begins have a binding site for RNA polymerase. These segments are known as
A) initiation factors.
B) promoters.
C) the holoenzyme.
D) sigma.

Question

Quizplus · Accepted Answer

Promoters are DNA sequences that define the beginning of a gene and serve as a binding site for RNA polymerase. Initiation factors and sigma are involved in the initiation of transcription, but they do not refer specifically to the DNA sequence where transcription begins. The holoenzyme refers to the complete RNA polymerase complex, including sigma and other subunits.

The Segments of DNA Where Transcription Begins Have a Binding