- Aug 20, 2017
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Incest doesn't increase the "chance to get a "slower" child", it just means that two people that are related will have similar genetic sequences and therefore children from both will have less genetic diversity, raising the chances of genetic defects. For example, someone is prone to an allergy and another person isn't, their child will have less chance of developing that allergy than two people that do. People with more genetic diversity have a greater pool of variance and less chance of passing on inherited flaws to their progeny.Incest pregnancy can be completely normal. Incest = Bad child is as big myth as a Smoking = Cancer.
Incest makes it a higher chance to get a "slower" child just like smoking makes it a higher changes to get lung cancer. Neither are the cause and effects aren't there 100% of the time.
But yes, it is just a higher risk of birth defects when limiting the parents to one gene pool. Not guaranteed bad but it could be.