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DNA is the bedrock of our genetic identity. Physical and mental traits arising from our genetics are encoded in the sequence of the bases in our DNA, which is generally unchanging and the same in all cells. There are ‘epigenetic’ aspects, still somewhat puzzling, that appear to carry over between generations, which are not due to the modification of DNA sequence. (Other posts have explored epigenetics.) But DNA sequence is the default molecule as carrier of our genetic identity.… Read the rest “the goldilocks zone: Mutation, Cancer, and Evolution”