The 5' and 3'untranslated regions (UTRs) of processed mRNA molecules are derived from:
A) exons.
B) introns.
C) promoters.
D) terminators.
E) the protein-coding region.

Question

Quizplus · Accepted Answer

The untranslated regions (UTRs) of mRNA are derived from exons, as they are part of the mature mRNA transcript that is spliced from the primary RNA transcript, which includes both exons and introns.

The 5' and 3'untranslated Regions (UTRs) of Processed MRNA Molecules