Riboswitches are folded RNAs that act as switches to turn protein synthesis on or off in response to .

Question

Quizplus · Accepted Answer

Riboswitches are known for their ability to sense and respond to changes in the environment. They can also respond to the presence or absence of certain molecules, such as metabolites or cofactors. When a riboswitch binds to its target molecule, it undergoes a structural change that either allows or blocks protein synthesis, depending on the regulatory mechanism of the specific riboswitch. Therefore, choice A is the correct answer because it highlights the most general and typical mechanism by which riboswitches function. The other choices (B, C, and D) are not directly relevant to riboswitches, as they refer to other cellular processes or molecules that do not interact with riboswitches in the same way.

Riboswitches Are Folded RNAs That Act as Switches to Turn