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Health issues of marrying cousins
The incidence of birth defects among children of 1st cousins may be offset by a lower incidence of cancer. Some studies have indicated that diversity between mates increases cancer risk. This is thought to be due to a higher ratio of genetic mismatches. When two families have been separated for 1000 generations, then they have diverged to a ...
Posted to Frame Game by flakca on October 24, 2009