117k views
2 votes
Messenger RNAs containing premature stop codons are destroyed by the mechanism of

A) nonstop decay.
B) directed RNase activity.
C) nonsense-mediated decay.
D) error-mediated repair.
E) None of these mechanisms.

1 Answer

5 votes

Final answer:

Nonsense-mediated decay is the mechanism that destroys messenger RNAs containing premature stop codons to prevent the production of non-functional proteins.

Step-by-step explanation:

The mechanism responsible for destroying messenger RNAs containing premature stop codons is called nonsense-mediated decay (C). This process helps to prevent the production of non-functional or truncated proteins. When a premature stop codon is encountered during translation, the mRNA molecule is recognized and degraded, ensuring that only functional proteins are synthesized.

User Toan Vo
by
8.5k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.