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How does gene flow affect genetic variation?(1 point)Increases genetic variation within a populationIncreases genetic variation between populationsReduces genetic variation within a populationHas no effect on genetic variation
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Increases genetic variation within a population.
Explanation: Gene flow (migration of individuals or gametes) introduces new alleles into a population, raising its genetic diversity and making populations more similar to each other.
Explanation: Gene flow (migration of individuals or gametes) introduces new alleles into a population, raising its genetic diversity and making populations more similar to each other.
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