What extends from the methylguanosine cap at the start of an mRNA to the AUG initiation codon?
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 5' UTR (untranslated region) extends from the methylguanosine cap at the start of an mRNA to the AUG initiation codon. This region regulates translation initiation and may contain regulatory elements such as upstream open reading frames (uORFs). The first intron and the last exon are not involved in this region, and the 3' UTR and the last intron are not located at the start of the mRNA.

What Extends from the Methylguanosine Cap at the Start of an MRNA