Use this model of a eukaryotic transcript to answer the following question(s).
-Which components of the previous molecule will also be found in mRNA in the cytosol?
A) 5' UTR I1 I2 I3 UTR 3'
B) 5' E1 E2 E3 E4 3'
C) 5' UTR E1 E2 E3 E4 UTR 3'
D) 5' I1 I2 I3 3'
E) 5' E1 I1 E2 I2 E3 I3 E4 3'

Question

Quizplus · Accepted Answer

The 5' untranslated region (UTR) and 3' UTR are present in both the transcript and mature mRNA. The exons (E1, E2, E3, and E4) are also present in mature mRNA in the cytosol, as they contain the coding regions for the protein. The introns (I1, I2, and I3) are removed during RNA processing and are not present in mature mRNA. Therefore, the best choice is C, which includes both UTRs and exons but not introns.

Use This Model of a Eukaryotic Transcript to Answer the Following