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First cousins can have children. Siblings can have children. Uncle-niece; father-daughter; etc.
As long as there are no genetic diseases in the family, degree of relation is actually not an issue. It is more of a social issue. Biologically-speaking, the presence of genetic diseases is the determiner. Socially-speaking, each culture has different taboo relationships.
The reason: If there is a genetically transferable disease, and we do not know whether it passes through an x or y chromosome, we assume that each child of a single-carrying parent has a 50% chance of transmitting it to their offspring. So, when you take two siblings who may be carrying it, you theoretically increase the chances of their offspring having the disease. Testing for the genes lets you tell with greater certainty.
First cousins introduces 2 fresh sets of genes into the equation, but if both of the siblings (uncles/aunts) are carriers, you have the same situation, basically, as siblings with one carrying parent. Now carry that down to second cousins. It would depend on whether your mother or father was a carrier, and whose first cousin (your mother's or father's) you are considering mating with.
The advice in rabbit breeding for real-life purposes is you can breed siblings once every 3-4 generations, but otherwise, you need fresh genes.
Thanks for a very thorough reply. I was thinking of sims in my TS4 game, though, and I guess the programming gets the last word. I had a couple marry, but they could not have children, so there are combinations where two siims can get married, but there will be no option like "try for baby". In such cases, it would be nice (and time consuming for both me and the sims involved) to know these things in advance.
There must be some rule in the game, no? I wish we could look it up easily. Or, is the mechanics a bit wonky - like relatives can not have kids no matter how distant they are?
I'd like to know where this game sets the cut.
- crocobaura3 months agoLegend
I didn't know they had that in the game. Maybe you could use the science baby option.
- Simmerville3 months agoLegend
I was asking for my Crown Princess, in thise circles family tree is important, and I don't think her parents the King and Queen would applaud a science baby. Thewy have a couple candidates for her, but one is her second cousin, and if they could not have kids there would probably be no approval to the marriage either.
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