How is the Activity of a Riboswitch Controlled

Question

How is the activity of a riboswitch controlled?
A) by other riboswitches
B) metabolite binding can change its structure
C) sigma factor binding alters its structure
D) small RNA complementary binding disrupts its function

Accepted Answer

The activity of a riboswitch is controlled by the binding of specific metabolites, which can induce a conformational change in the RNA molecule that can lead to modulation of its activity. Other choices, such as A, C, or D, are not known to be involved in the control of riboswitch activity.