Eukaryotic mRNA molecules are occasionally interspersed with non-coding sequences that must be removed before protein synthesis.These are called
A)anticodons.
B)introns.
C)exons.
D)nucleosomes.
E)chromomeres.

Question

Quizplus · Accepted Answer

The non-coding sequences in eukaryotic mRNA are called introns. These introns are removed from the pre-mRNA molecule through a process called splicing, which leaves only the coding sequences (exons) intact for protein synthesis.

Eukaryotic MRNA Molecules Are Occasionally Interspersed with Non-Coding Sequences That