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Albert Einstein and Elsa didn't have children together because they were worried about genetic defects. It is now considered not to be a great problem if there are know known recessive problem genes in the family.
IIN that I have a relationship with my cousin?
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Albert Einstein and Elsa didn't have children together because they were worried about genetic defects. It is now considered not to be a great problem if there are know known recessive problem genes in the family.