Which is the most harmful to the genetics of society if offspring are produced
Incest refers to incest between biological relatives not step relatives or in laws
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@shortstories - on average, parent and child share 50% of DNA, whole siblings only share 25% of DNA. So the parent/child pairings are more affected. Given that the mother of an adult son is more likely to have a downy baby due to her age... 🤔 that is the winner of the choices given.
