Answer: pre-mRNA and must be processed into a messenger RNA (mRNA).
A 5' cap is added to the beginning of the RNA transcript, and a 3' poly-A tail is added to the end.
In splicing, some sections of the RNA transcript (introns) are removed, and the remaining sections (exons) are stuck back together.
Some genes can be alternatively spliced, leading to the production of different mature mRNA molecules from the same initial transcript.
Explanation:
