It was previously thought that club allegiance was determined by "peer pressure and copying family members," but the new research challenges that theory.
According to the research, the Liverpool gene is associated with a "love of European travel" and "excellent long-term memory".
The gene only appears to explain allegiance to one of the two teams, indicating that either we are all Liverpool or Everton fans deep down, or that more research is needed.
Have you seen any April Fools' Day hoaxes in the news? Email them to us at firstname.lastname@example.org or comment on our Facebook page.
More top news
The Government should borrow more to invest in new homes to help solve the housing crisis, Communities Secretary Sajid Javid says.
Prison officers are to receive body-worn cameras as part of a £3 million investment to improve safety in jails, the Government announces.
Populist billionaire Andrej Babis and his ANO movement decisively won the Czech Republic's election in a vote on Saturday.