Prevalence in Humans
The fact that DNA copy number variation is a widespread and common phenomenon among humans was first uncovered following the completion of the human genome project. It is estimated that approximately 0.4% of the genomes of unrelated people typically differ with respect to copy number. De novo CNVs have been observed between identical twins who otherwise have identical genomes.
Read more about this topic: Copy-number Variation
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—Philip Norman, British author, journalist. The Life and Good Times of the Rolling Stones, introduction (1989)
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