A missense mutation results in what change?

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Multiple Choice

A missense mutation results in what change?

Explanation:
Missense mutations happen when a single nucleotide change in a codon leads to the incorporation of a different amino acid in the protein sequence. This directly changes the amino acid at that position, which is why the best description is that the amino acid is changed. If the codon still codes for the same amino acid, you’d have a silent (no-change) mutation rather than a missense one. If a stop codon is introduced, that would be a nonsense mutation and truncate the protein. If the reading frame is shifted by an insertion or deletion, that would be a frameshift mutation.

Missense mutations happen when a single nucleotide change in a codon leads to the incorporation of a different amino acid in the protein sequence. This directly changes the amino acid at that position, which is why the best description is that the amino acid is changed. If the codon still codes for the same amino acid, you’d have a silent (no-change) mutation rather than a missense one. If a stop codon is introduced, that would be a nonsense mutation and truncate the protein. If the reading frame is shifted by an insertion or deletion, that would be a frameshift mutation.

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