The statement that correctly identifies how a genetic mutation affects an organism is that mutations can alter or stop the production proteins in a way that either alters the appearance or quality of life of an organism.
Explanation:
A genetic mutation occurs at the molecular level, in the DNA, and consists of the change of a specific sequence of nucleotides in the nucleic acid.
<u>Since the sequence of DNA bases determines genetic information necessary for the synthesis of specific proteins, changes in the sequence can produce alterations in structural and functional proteins</u> —due to changes in the sequence of amino acids or incomplete synthesis— that affect the appearance or functioning of a living being.
The other options are not correct because:
<em>Although some mutations go unnoticed, most can cause alterations in organisms.
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<em>Not all mutations are harmful or lead to premature death.
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