Mechanisms of Evolution Review

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What is Mutation?

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A change in the DNA sequence of an organism that can lead to new traits in offspring.

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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 Genetic Drift?

Back

A mechanism of evolution that refers to random changes in the frequency of alleles in a population.

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What is Gene Flow?

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The transfer of genetic material between populations, which can increase genetic diversity.

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How does Mutation contribute to evolution?

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Mutations introduce new genetic variations, which can be acted upon by natural selection.

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What is an example of Natural Selection?

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Insects developing resistance to pesticides due to selective pressure from chemical exposure.

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What is an example of Genetic Drift?

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A forest fire that randomly kills a large portion of a population, altering allele frequencies.

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How can Gene Flow affect a population?

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It can introduce new alleles into a population, increasing genetic diversity and potentially altering traits.

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What is the significance of a mutation in a population?

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Mutations can lead to new traits that may provide a survival advantage or disadvantage.

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What role does environmental change play in Natural Selection?

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Environmental changes can create new challenges that favor certain traits over others.