- Joined
- Aug 8, 2020
Let me start with a quick lecture on why incest is bad:
These genetic deformaties don't just pop into existence because you fucked your sister. They are the result of rare recessive alleles which are probably lurking in your DNA right now. When you select a partner pseudo-randomly, the chances of a homozygous (having the same two alleles) offspring for any particular genetic disease is next to nothing and so these diseases are rare. A brother and sister breeding, however, creates a genetic bottleneck. Observe the following:
Let's say "tall" (T) is the normal variant and "short" (t) is some terrible genetic disease. If just one parent has the "t" allele hiding in their genes, none of their children will inherit the disorder. But half will be carriers. Now, if two carriers decide to breed (which is not very unlikely in the case of brother/sister incest), then there is a 25% chance any given child born from them will have this disorder. It's a bit more complicated than that, but we're at least at 7th grade genetics at this point. From here, we can do some extrapolation:
I've had a few and don't want to break down all possibilities for first cousins, but most civilized countries have decided first cousins is a no-go despite the much lower risk. Are second cousins okay, though? How far do we go? Technically all life on Earth is "nth" cousins so we have to draw the boundary somewhere.
Where's a good boundary in your opinion?
These genetic deformaties don't just pop into existence because you fucked your sister. They are the result of rare recessive alleles which are probably lurking in your DNA right now. When you select a partner pseudo-randomly, the chances of a homozygous (having the same two alleles) offspring for any particular genetic disease is next to nothing and so these diseases are rare. A brother and sister breeding, however, creates a genetic bottleneck. Observe the following:
Let's say "tall" (T) is the normal variant and "short" (t) is some terrible genetic disease. If just one parent has the "t" allele hiding in their genes, none of their children will inherit the disorder. But half will be carriers. Now, if two carriers decide to breed (which is not very unlikely in the case of brother/sister incest), then there is a 25% chance any given child born from them will have this disorder. It's a bit more complicated than that, but we're at least at 7th grade genetics at this point. From here, we can do some extrapolation:
I've had a few and don't want to break down all possibilities for first cousins, but most civilized countries have decided first cousins is a no-go despite the much lower risk. Are second cousins okay, though? How far do we go? Technically all life on Earth is "nth" cousins so we have to draw the boundary somewhere.
Where's a good boundary in your opinion?
