Final answer:
A stop codon mutation occurs when a codon is changed to signal the end of protein synthesis.
Explanation:
When a codon like UCA is mutated to UGA, this change is known as a stop codon mutation. Stop codons signal the end of protein synthesis in translation, leading to premature termination of the protein being formed.
Learn more about stop codon mutation here:
https://brainly.com/question/30279740
