The function of guanosine in self-splicing is:
A) to provide energy.
B) as an attacking group.
C) as a necessary base for RNA editing.
D) All of the above.
E) None of the above.

Question

Quizplus · Accepted Answer

Guanosine serves as an attacking group in self-splicing reactions, specifically during the formation of the 2'-5' phosphodiester bond. Guanosine attacks the 5' end of the intron, leading to the release of the lariat structure and the splicing of the exon sequences. It does not provide energy or play a role in RNA editing.

The Function of Guanosine in Self-Splicing Is