Genetically speaking, opposites do attract by Steve Amarante

When we think of attraction with regards to the subconscious; it’s often frame within the contexts of body language, structuring words (pick up lines) with suggestive inferences but never from the perspective of our genetic make-up. A recent study out of the University of Parana in Brazil however, implies that opposite genes plays a significant subconscious factor in how we choose a mate.

Having studied married couples; it was note that married duos were more likely to have genetically differences in DNA regions that govern the immune system than where randomly matched pairs.  Why?