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Why does incest result in birth defects?
(lemmy.world)
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this post was submitted on 05 Feb 2024
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Human genes only really "work as intended" when they are combined from very different sets.
So-called "recessive" genes are overruled by your partner's different pile of genes. They are usually shit traits like soggy bones or hair growing backwards, but since they never dominate, they haven't been naturally selected away. They're just harmless baggage.
You can still get them because it's all random, but the likelihood is generally low.
If you don't have that difference in mating genes, more of these recessive genes get to have a say in building the human. This severely increases the likelihood of birth defects.
https://en.wikipedia.org/wiki/Inbreeding
Fun fact: This is one of the reasons why - when we start colonies on the Moon or Mars or wherever - it's important that we send a fuck ton of people.
Or a fuck ton of, samples.
So, note for any women looking to colonize Mars, your womb will belong to the colony.
In any long term colony, with hard constrained resources, a lot of individual rights will have to fall below the collective requirements. The collective needs will have to supercede the individual. It's a classic "Tragedy of the commons" situation, otherwise.
Mandatory pregnancy is likely not one of them however. More likely mandatory birth control, with all pregnancies being planned. There will also likely be strong incentives to widen the gene pool.
E.g. A couple might be allowed 1 child by default, with additional requiring either that they already have a useful level of general diversity, or that doner eggs or sperm are used.
Even simple financial incentives could achieve the same effects, if done right.
Those of you women living in U.S. red states will be familiar with the feeling.
Not necessarily true. Presumably there would be a terms of service you'd know about before takeoff. And any of it could easily be voluntary rather than mandatory.
Yes. Nonetheless, I'd like to direct you to watch a scene in the series It's always sunny in Philadelphia named "the implication" and try to apply it to Mars.
Each person sent costs a fuckton of fuel. Do you think they’d waste it on someone who will not contribute to expanding the population?
That was the point. It can be like voluntarily giving up rights by joining the armed services.
Then science better get going on artificial, external wombs. A lot of people would be overjoyed to be able to have kids without the physical risk of pregnancy, and the technology seems like it'd be mandatory for true colonization efforts