Which process both stabilizes and increases the efficiency of translation of an mRNA?
A) Editing
B) Splicing
C) Addition of a 7-methylguanosine cap
D) Addition of the CCA sequence to the 3ʹ end

Question

Quizplus · Accepted Answer

The addition of a 7-methylguanosine cap to the 5' end of an mRNA stabilizes the mRNA and increases its efficiency of translation. The cap helps protect the mRNA from degradation and helps recruit the ribosome to the correct starting site for translation. Editing, splicing, and the addition of the CCA sequence to the 3' end are involved in other processes but do not directly stabilize or increase the efficiency of translation.

Which Process Both Stabilizes and Increases the Efficiency of Translation