Comment on CRISPR used to remove extra chromosomes in Down syndrome and restore cell function

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protist@mander.xyz ⁨19⁩ ⁨hours⁩ ago

TIL

  • In the majority of cases, the extra copy of chromosome 21 comes from the mother through the egg.
  • In a small percentage (less than 5%) of cases, the extra copy of chromosome 21 comes from the father through the sperm.
  • In the remaining cases, the error occurs after fertilization, as the embryo grows.

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