Which Statement About Promoters is True

Question

Which statement about promoters is true?  
A) They are long sequences in DNA.
B) They are locations in DNA where regulatory proteins do not gather.
C) They control transcription.
D) They are associated with all genes.
E) They slow the rate of transcription.

Accepted Answer

Promoters are short sequences in DNA that control the initiation of transcription by RNA polymerase. They are not associated with all genes, but only with those that need to be transcribed. Additionally, they do not slow down the rate of transcription, but rather regulate it.