"Gain of function" mutations are generally dominant because one copy in a diploid organism is sufficient to alter the normal phenotype.

Name: "Gain of function" mutations are generally dominant because one copy in a diploid organism is sufficient to alter the normal phenotype.
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Gain of function mutations often result in a new or enhanced activity of a protein, and having just one copy of the mutated gene can be enough to produce a noticeable effect, making these mutations typically dominant.

"Gain of Function" Mutations Are Generally Dominant Because One Copy