Regarding the generational incest you could probably think about what you would count as incest horizontally and then take the same number of steps vertically? i.e. if I would be okay with the daughter of my father's cousin, that would be three steps up the family tree and three steps down, so 0.5^6 matching DNA, which means I would be okay with dating my grand-grand-grand-grand-grandmother. Have fun with this knowledge.
last edited at Mar 9, 2021 10:47AM