aarongrisier3594 aarongrisier3594
  • 21-04-2018
  • Biology
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Why is genetic variation within a population essential for evolution?

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zainuaishu
zainuaishu zainuaishu
  • 22-04-2018

Genetic variation is essential for natural selection because natural selection can only increase or decrease frequency of alleles that already exist in the population. Genetic variation is caused by: mutation. random mating between organisms.
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