Similarly, we can claim genetic basis for wanting an education, investing in the stock market, choosing a Chevy over a Ford, going to Gramma Ethyl's at Christmas.
> The analysis done by Kong and his student relies on the key idea that a genetic sequence that occurs more frequently in participants than in nonparticipants will also occur more frequently in the genetic regions that are shared by two related participants.
> Put differently, a bit of DNA that is common in the population will show up frequently in the study. But it will still only have a 50/50 chance of showing up in the child of someone who carried a copy. If a bit of DNA makes people more likely to enroll in genetic studies, it will be more common both in the overall data and among closely related family members.
> So they checked the genetic sequences shared between first-degree relatives—either parents and children or siblings (but not twins)—in the UK Biobank.
Still pretty thin, maybe. Could be intelligence, or outgoing nature, or adaptability. Not some mysterious 'genetic study' gene.