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  4. Ultimate source of organic variation is the process which provide raw materials for evolution is

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Q. Ultimate source of organic variation is the process which provide raw materials for evolution is

UP CPMTUP CPMT 2009

Solution:

Mutations are considered to be raw material for evolution. Mutations constantly generate new hereditary variants. These variants accumulate in populations. Other forces of evolution like natural selection operate on mutations to bring about genetic divergence in the naturally interbreeding populations.