What is evolution and what are the forces diving evolution?

Evolution is the change in allelic frequencies in a population from one generation to the next. There are four forces driving evolutionary change. Random genetic drift, where the allelic frequencies change randomly. Natural selection, where the frequencies change depending on interactions with the environment. Mutation, by which frequencies change due to changes in the DNA sequences driven by mutagenic factors. And migration, by which frequencies can change in a population from one generation to the next due to individuals from other populations joining or leaving the group.

Answered by Stefania K. Biology tutor

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