>>13459596Siblings obviously. They will each have the same 2 sets of grandparents. Biological cousins in the traditional sense don't have the same 2 sets. Cousins have 1 shared set of grandparents and each also has 1 unique set, thus having more genetic distance than siblings and more genetic distance than these future kids.
*even monozygotic twins have very slight genetic variations and so do their gametes. So these future kids will not be a mathematically perfect equivalence to siblings, but it's so negligible I'd say it's irrelevant.
>>13459629>evolutionary indicators>biological indicators>these are separateretard alert.
>feel biological closenessThis board is going to shit
