Mechanisms of Evolution

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What is Mutation?

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A mutation is a change in the genetic code of an organism, which can lead to new traits or abilities.

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What is Non-random mating?

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Non-random mating occurs when individuals in a population choose mates based on specific traits, leading to a preference for certain characteristics.

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What is Gene flow?

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Gene flow is the transfer of genetic material between populations, often occurring when individuals migrate and breed with another population.

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What is Genetic Drift?

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Genetic drift is a mechanism of evolution that involves 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 Natural Selection?

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Natural selection is the process by which organisms better adapted to their environment tend to survive and produce more offspring.

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Example of Mutation:

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A pig developing the ability to walk and do karate due to a genetic change.

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Example of Non-random mating:

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Yellow toucan birds preferring to mate with other yellow toucans rather than green toucans.

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Example of Gene flow:

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Deer from one population moving to another area and interbreeding with the local deer population.

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Example of Genetic Drift:

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A few deer from a population moving to a new area and establishing a new population, leading to random changes in allele frequencies.

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What is the significance of Mutation in evolution?

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Mutations introduce new genetic variations, which can lead to new traits that may be beneficial for survival.