What two important domains within a riboswitch involve the ligand-binding site?
A) aptamer and expression platform
B) A site and B site
C) B site and C site
D) alpha and beta
E) conformation and anticonformation

Question

Quizplus · Accepted Answer

The aptamer domain is the part of a riboswitch that binds to a specific ligand, while the expression platform domain is the part that communicates the binding event to the downstream gene expression machinery. Therefore, the ligand-binding site is within the aptamer domain and the expression platform acts upon it.

What Two Important Domains Within a Riboswitch Involve the Ligand-Binding