>>3100910All of the widescale data for it comes from muslims and jews that have inbred for centuries. Very few rednecks come forward because it is often illegal alongside being taboo. Because of this, nobody gets genetic testing done for it, so it's difficult to determine what % of defects result from incest itself rather than you not knowing your family is at high risk for heart problems.
To put this in perspective, the chances of chromosomal abnormalities increase with each year as the mother gets older. As unbelievable as it sounds, you're less likely to have birth defects from fugging your 20 year old sister than you are from fugging that 30 year old you met on
match.comEither way, 1 generation hardly matters. It wouldn't surprise me at all if incest was the only way to continue the species during a bottleneck period.
