Question

A primary transcript in the nucleus of a eukaryotic cell is _____ the functional mRNA, while a primary transcript in a prokaryotic cell is _____ the functional mRNA.
a. larger than;
b. smaller than the same size as;
c. larger than the same size as;
d. smaller than larger than;
e. the same size as

Answer 1

Answer:

The correct answer is C larger than the Same as

Explanation:

The primary transcript in the nucleus of Eukaryotic cell is larger than the functional mRNA.This because the primary transcript contain both introns(non coding part) and exons (coding part).Before translation in eukaryotes the noncoding part or intron is removed from the primary transcript by Splicing resulting in the formation of functional mRNA.

         On the other hand splicing rarely occur in the prokaryotic mRNA as a result the primary transcript is same size as that of functional mRNA in case of Prokaryotes.