Science Homework Help

Which of the following best describes the purine riboswitch?

Group of answer choices

Guanine causes RNA to change conformation, producing a transcription terminator structure that removes RNA polymerase.

Guanine causes the formation of a stem-loop terminator structure, which is processed by the Dicer to form the RITS.

Guanine causes the modification of the RNA polymerase CTD, which results in the premature termination of transcription.

Guanine causes the formation of a stem-loop terminator structure, which is processed by the Dicer to form the RISC.