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What is the purpose of a nonsense codon?

A. They terminate protein synthesis.
B. They have no effect on protein synthesis.
C. They cause the protein product to break down.
D. They add a random amino acid to the polypeptide sequence.



Answer :

GinnyAnswer

Final answer:

Nonsense codons, or stop codons, are crucial in terminating protein synthesis and impacting the functionality of the resulting protein product.


Explanation:

Nonsense codons, also known as stop codons, terminate protein synthesis by releasing the polypeptide chain from the translation machinery. They play a crucial role in ending the translation process and shortening the resulting protein product prematurely. When a codon is changed to a stop codon, particularly in the early part of a gene, it can lead to a non-functional protein.


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