Now a study by the National Society of Genetic Counselors says that having a child with your first cousin raises the risk of a significant birth defect from about 3-to-4 percent to about 4-to-7 percent.
According to the authors, that difference isn't big enough to justify genetic testing of cousin couples, much less bans on cousin marriage.
Professor Spencer, an evolutionary zoologist, said these laws should be repealed, especially in America, where he said they were drafted in a way that discriminated against the rural poor and immigrants: "Neither the scientific nor social assumptions behind such legislation stand up to close scrutiny.
As Frame Game has argued before, topics such as sex with animals, dog-eating, and sex with cousins are never as simple as they're made out to be.After doing a little research, we are surprised to find that, in about half of the U. Of course, your question does not concern the legality of your prospective union, but what society will say.Fact is, that’s why these kinds of things are regulated.Often, you have to change your opinions on related issues in order to honor that principle, or you have to throw out the principle and change your mind about the original question. You can't appeal to the Bible; in the Bible, God commands marriages between first cousins.Instead, advocates of laws against cousin marriage appeal to science.