Question

PABP (polyA binding protein) with eIF4G _______________ the mRNA to prevent degradation.

A) Enhances
B) Blocks
C) Stabilizes
D) Promotes

Answer 1

PABP (polyA binding protein) binds to the mRNA to prevent degradation by exonucleases, therefore stabilizing the mRNA.

Step-by-step explanation:

The correct answer is C) Stabilizes. PABP (polyA binding protein) binds to the mRNA to prevent degradation. By binding to the poly-A tail of the mRNA molecule, PABP helps stabilize and protect the mRNA from degradation by exonucleases. This allows the mRNA to persist in the cell for longer, increasing the chances of successful translation of the mRNA into proteins.