What modifications made to mRNA function to prevent its degradation in the cytoplasm by exonucleases?
A) introns
B) promoter regions
C) CAP and poly A tail
D) exons
E) protein coat

Question

Quizplus · Accepted Answer

The addition of a 5' cap and a poly A tail to mRNA molecules are modifications that help protect mRNA from degradation by exonucleases in the cytoplasm. The 5' cap is added to the 5' end of the mRNA and the poly A tail is added to the 3' end, both serving as critical elements for mRNA stability and efficient translation.

What Modifications Made to MRNA Function to Prevent Its Degradation