Mutations and Genetic Variation
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Last updated 6:26 PM on 1/29/26
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5 Terms
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What is a mutation?
A change in an organism’s DNA.
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Which mutations can affect the gene pool?
Mutations transmitted in the gametes.
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How does a new allele created by mutation become more common?
Only if individuals with that allele have an advantage, usually through natural selection.
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How can a mutation change the gene pool immediately?
By substituting one allele for another.
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What is genetic (heritable) variation?
Inherited differences among individuals in a population.
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