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4.6 explain how an understanding of the source of variation in organisms has provided support for Darwin’s theory of evolution by natural selection
explain how an understanding of the source of variation in organisms has provided support for Darwin’s theory of evolution by natural selection
- One of the foundation pillars for the theory of evolution is the variation that occurs among individual members of a species. The basis of this variation is the genetic makeup of the individuals in a species. It is this variation that selection acts upon. Mutation of DNA provides a source of new variations thus supporting Darwin’s theory of evolution.