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by tsimionescu 1387 days ago
Like any genetic disorder, Down syndrome is actually inheritable. 50% of the children of a Down syndrome parent (typically a mother, as men with Down syndrome are typically infertile) will also have Down syndrome, assuming no special technology is used. What is true is that the 50% of children who do not have Down syndrome will likely also not have any higher chance than the general population of having children of their own with Down syndrome.