Evolution Review

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What is Gene Flow?

Back

The exchange of genes between two populations, which can increase genetic variation.

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What is Directional Selection?

Back

A type of natural selection that favors an extreme phenotype, causing the allele frequency to shift toward that phenotype.

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What is Genetic Drift?

Back

A mechanism of evolution that refers to random changes in allele frequencies in a population, often having a more significant effect in small populations.

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What is Speciation?

Back

The process by which new species arise, often due to genetic differences that prevent interbreeding.

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What is Stabilizing Selection?

Back

A type of natural selection that favors intermediate phenotypes and reduces variation.

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What is Disruptive Selection?

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A type of natural selection that favors extreme phenotypes over intermediate phenotypes.

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How does Gene Flow affect genetic variation?

Back

Gene Flow tends to increase genetic variation (diversity) within a population.

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What is the Founder Effect?

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A phenomenon that occurs when a small group from a larger population establishes a new population, leading to reduced genetic diversity.

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What is Natural Selection?

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The process by which organisms better adapted to their environment tend to survive and produce more offspring.

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What is a Gene Pool?

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The total collection of genes in a population at any one time.