Which of the following regulatory elements is not composed of DNA sequences? View Available Hint (s) a. Enhancers

b. Silencers

c. Promoter-proximal elements

d. Activators

The answer is the Activators.

Explanation:

The regulatory elements take part in RNA biosynthesis.

The Activators facilitate the formation of productive complex. This is by binding sequence specifically to a DNA site located in or near a promoter.

Note this, activation region is the part of activator which makes protein interaction with the general transcription machinery.