Study: Married couples have similar DNA when they wed
Thinkstock


A new study concludes that white husbands and wives are more similar to each other genetically than they are to random individuals, the Los Angeles Times reports.
Scientists investigated the statistical likelihood that a person will marry someone with a similar genotype, gathering data from 9,429 non-Hispanic white individuals. Researchers also examined 1.7 million single nucleotide polymorphisms (points where the DNA sequences of individuals diverge). They discovered that while the married couples were more genetically similar than randomly generated pairs, that likeness "was just one-third the magnitude of educational similarity between spouses," notes the Times' Monte Morin.
The authors of the study would like to conduct research with non-whites as well, calling their findings only "the first step" in understanding how genetics influence marriages. Their findings were published Monday in the journal PNAS.
Subscribe to The Week
Escape your echo chamber. Get the facts behind the news, plus analysis from multiple perspectives.

Sign up for The Week's Free Newsletters
From our morning news briefing to a weekly Good News Newsletter, get the best of The Week delivered directly to your inbox.
From our morning news briefing to a weekly Good News Newsletter, get the best of The Week delivered directly to your inbox.
Sign up for Today's Best Articles in your inbox
A free daily email with the biggest news stories of the day – and the best features from TheWeek.com
Catherine Garcia has worked as a senior writer at The Week since 2014. Her writing and reporting have appeared in Entertainment Weekly, The New York Times, Wirecutter, NBC News and "The Book of Jezebel," among others. She's a graduate of the University of Redlands and the Columbia University Graduate School of Journalism.
-
Book reviews: 'Girl on Girl: How Pop Culture Turned a Generation of Women Against Themselves' and 'Notes to John'
Feature The aughts' toxic pop culture and Joan Didion's most private pages
-
The FDA plans to embrace AI agencywide
In the Spotlight Rumors are swirling about a bespoke AI chatbot being developed for the FDA by OpenAI
-
Digital consent: Law targets deepfake and revenge porn
Feature The Senate has passed a new bill that will make it a crime to share explicit AI-generated images of minors and adults without consent
-
Sea lion proves animals can keep a beat
speed read A sea lion named Ronan beat a group of college students in a rhythmic dance-off, says new study
-
Humans heal much slower than other mammals
Speed Read Slower healing may have been an evolutionary trade-off when we shed fur for sweat glands
-
Novel 'bone collector' caterpillar wears its prey
Speed Read Hawaiian scientists discover a carnivorous caterpillar that decorates its shell with the body parts of dead insects
-
Scientists find hint of alien life on distant world
Speed Read NASA's James Webb Space Telescope has detected a possible signature of life on planet K2-18b
-
Katy Perry, Gayle King visit space on Bezos rocket
Speed Read Six well-known women went into lower orbit for 11 minutes
-
Scientists map miles of wiring in mouse brain
Speed Read Researchers have created the 'largest and most detailed wiring diagram of a mammalian brain to date,' said Nature
-
Scientists genetically revive extinct 'dire wolves'
Speed Read A 'de-extinction' company has revived the species made popular by HBO's 'Game of Thrones'
-
Dark energy may not doom the universe, data suggests
Speed Read The dark energy pushing the universe apart appears to be weakening