Want to have your genes tested? It might be genetic
Want to have your genes tested? It might be genetic
arstechnica.com
Want to have your genes tested? It might be genetic
People in a genetic database have segments of DNA in common unexpectedly often.
Could it be that people who have a higher suspicion they are at risk for a hereditary illness will participate? Then the DNA they share is actually to do with the illnesses and not directly coding for a trait that makes them want to participate. This assumes the higher suspicion correlates to a higher history of hereditary illness which I feel would check out.
Hmmmm this is actually a good hypothesis! my grandfather died of dementia and part of the reason i got my DNA tested was to see if i had the gene for that (thankfully I do NOT!)