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Sagot :
Final answer:
Mutation and sexual reproduction are key sources of heritable variation, unlike mitosis, which primarily serves for growth and repair in cells.
Explanation:
Mutations are a source of heritable variation as they lead to the creation of new alleles, providing genetic diversity in a population. While mitosis is a type of cell division for growth and repair, it does not directly generate heritable variation. Identical twins are genetically identical and do not contribute to heritable variation as they result from the splitting of a single fertilized egg.
Learn more about Heritable variation through mutations and cell division here:
https://brainly.com/question/40867393
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