By Dayne Hudson
It's the old saying: "Marry someone in which you have a lot of shared interests."
And sometimes it's impossible to think that you and your other half have anything in common at all - with bickering over where to go for dinner, what colour the carpet should be, and the infamous toilet seat.
But scientists have discovered that despite your possible minor disagreements, married couples do have a lot of DNA in common.
The study authors looked at the genetic blueprints of 825 U.S. married couples and found a large preference for a partner with DNA similarities across the entire human genome.
The 1,650 people were studied were non-Hispanic, white men and women born between the 1930s and 1950s.
The study found that the preference for a genetically similar spouse was only as third as strong as the preference for a spouse with comparable education.
So it seems as if someone on the same wave length as you intellegence wise, is who you just might marry, or who you might have already tied the knot with!
But still, it's not that simple...
The researchers say that the finding can be partly explained by people tending to marry someone who lived nearby or of the same ethnicity.
But despite this, we still seem to be drawn to spouses whose genes are similar to our own.
The researchers measured genetic similarity by comparing 1.7 million individual DNA building blocks.
They compared the genetic makeup of the married couples to other people chosen at random in the opposite sex, from the same group of people being studied.
The researchers pointed out that people usually pick spouses with similar backgrounds and characteristics in addition to education, including race, religion, age, income and body type.
But the education finding seems to be a big finding!
