Which components of 5' UTR E₁ I₁ E₂ I₂ E₃ I₃ E₄ UTR 3' will also be found in mRNA in the cytosol?

Question

Quizplus · Accepted Answer

The 5' UTR and 3' UTR components, as well as the intron-exon junctions (I₁, I₂, I₃) which are part of the pre-mRNA splicing machinery, will also be found in the mature mRNA transcript after processing by splicing in the nucleus. The exon regions (E₁-E₄) represent the coding regions, and will be translated into protein after the mRNA is transported to the cytosol. Therefore, the best choice is C, which includes all the components found in both pre-mRNA and mature mRNA.

Which Components of 5' UTR E₁ I₁ E₂ I₂ E₃