MECHANISMS OF EVOLUTION JEDI TRAINING

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What is natural selection?

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Natural selection is the process by which organisms that are better adapted to their environment tend to survive and reproduce more successfully than others.

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What is genetic drift?

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Genetic drift is a mechanism of evolution that refers to random changes in the frequency of alleles in a population, often having a more significant effect in small populations.

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What is gene flow?

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Gene flow is the transfer of genetic material between populations, which can occur through migration of individuals or gametes.

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What is mutation?

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Mutation is a change in the DNA sequence of an organism, which can lead to new traits and variations within a population.

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What is nonrandom mating?

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Nonrandom mating occurs when individuals in a population choose mates based on specific traits, leading to a change in allele frequencies.

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How does natural selection lead to evolution?

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Natural selection leads to evolution by favoring the survival and reproduction of individuals with advantageous traits, gradually changing the population's genetic makeup.

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What is the significance of a small population in genetic drift?

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In small populations, genetic drift can lead to significant changes in allele frequencies, potentially resulting in the loss of genetic diversity.

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How can gene flow affect a population?

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Gene flow can introduce new alleles into a population, increasing genetic diversity and potentially altering the population's adaptive potential.

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What role do mutations play in evolution?

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Mutations introduce new genetic variations, which can be beneficial, neutral, or harmful, and are a primary source of genetic diversity in populations.

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What is an example of natural selection in action?

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An example of natural selection is the peppered moth, where darker moths became more common in polluted areas due to better camouflage from predators.