What extends from the termination codon at the end of an mRNA coding region to the end of the poly(A)tail?
A)the first intron
B)the last exon
C)the 5' UTR
D)the 3' UTR
E)the last intron

Question

Quizplus · Accepted Answer

The 3' UTR (untranslated region) extends from the termination codon at the end of an mRNA coding region to the end of the poly(A) tail. This region contains regulatory sequences that can affect mRNA stability, localization, and translation efficiency. The other choices (A, B, C, E) do not accurately describe this region.

What Extends from the Termination Codon at the End of an MRNA