How does the primary transcript in the nucleus of a eukaryotic cell compare to the functional mRNA?
A) the primary transcript is the same size as the mRNA
B) the primary transcript is larger than the mRNA
C) the primary transcript is smaller than the mRNA
D) both the primary transcript and mRNA contain introns

Question

Quizplus · Accepted Answer

The primary transcript is larger than the mRNA because it contains both introns and exons, while the mRNA has had the introns spliced out and contains only the exons.

How Does the Primary Transcript in the Nucleus of a Eukaryotic