D2.2.3 (HL)—Control of mRNA degradation Topic Practice
D2.2.3 (HL)—Control of mRNA degradation Topic Practice
Students practise explaining how mRNA lifespan is regulated via structural features like the poly-A tail and nuclease action.
How this is tested
- interpret how progressive poly-A tail shortening limits translation duration and triggers mRNA decay
- explain how endonucleases or exonucleases act on mRNA structure to terminate gene expression