Sunday, March 29, 2015

Are You Related to Your Friends?

As the saying goes “friends are the family you choose”, could now have a deeper meaning to it due to a study that lead to a possible scientific reasoning behind this statement.  After a study was performed based on data from the Framingham Heart Study, it was found that friends had more gene variations in common than strangers.  Pairs of friends appeared to share the same gene involved in a person’s sense of smell, the olfactory gene, most commonly.

Researchers compared gene variations between nearly 2,000 people who were not biologically related.  According to social scientist, Nicholas Christakis of Yale University researchers conducted the study to “provide a deep evolutionary account of the origins and significance of friendships.” 




It was found that pairs of friends have had the same genetic relation as people did with their fourth cousin, or a great-great grandfather, after analyzing about 1.5 million marker of gene variations.  This information could be translated into about 1 percent of the human genome.  Though this number may not seem very significant, it is significant in the world of genetics.  These results suggest that choosing friends who share similar genes is a behavior that could have contributed to human evolution.

This information is very fascinating because often times, we always wonder why we associate ourselves with people we seem to have more in common with, or why we get along with some people, and not others.  This is also a different take on the concept of evolution, and how this could influence it in the future.  As more research is done to further study how friends could share common DNA sequences, it will be interesting to see other similarities found in genes, and other ways we could possibly be related to our friends.  


Original Article: http://www.livescience.com/46791-friends-share-genes.html
Additional: http://www.npr.org/blogs/health/2014/07/14/331354227/do-we-choose-our-friends-because-they-share-our-genes

4 comments:

  1. I found this article awesome!!! I have always been drawn to people with similar characteristics as me. It is amazing that this genetic link as actually been made. Very interesting!

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  2. This article is very interesting! It is amazing to think that who we associate ourselves with has to do with sharing similar genes with them. I cant wait to see what other similarities will be discovered with further research.

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  3. Wow this is a very interesting article. I find it amazing that there could be a genetic link among friends.

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  4. This article intimidates me. It seems that the affects of our genes seem to be increasingly found to control our lives more than we might think. Its strange to think that our genes can alter who we associate with.

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