Before messenger RNA fully matures,
A) all exons are deleted and removed.
B) a poly-A tail and modified guanine "cap" are added.
C) anticodons are assembled.
D) the transfer RNA transfers the messenger RNA to the ribosome.
E) the single RNA strand duplicates itself in much the same way as DNA.

Question

Before messenger RNA fully matures,
A) ​all exons are deleted and removed.
B) ​a poly-A tail and modified guanine "cap" are added.
C) ​anticodons are assembled.
D) ​the transfer RNA transfers the messenger RNA to the ribosome.
E) ​the single RNA strand duplicates itself in much the same way as DNA.

Quizplus · Accepted Answer

Before messenger RNA fully matures, a poly-A tail and modified guanine "cap" are added to protect the RNA strand from enzymes and aid in the initiation of translation. Exons are not deleted and removed, anticodons are not assembled, and transfer RNA does not transfer the messenger RNA to the ribosome. RNA duplication does not occur in the same way as DNA replication.

Before Messenger RNA Fully Matures