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[NoelSeven]

This article is pretty mind-blowing. Not something that can be read and digested quickly, there's a lot here to think about.

Look for the findings on "chimerism and mosaicism."

"In the mid-1900s, scientists began to get clues that this was not always true. In 1953, for example, a British woman donated a pint of blood. It turned out that some of her blood was Type O and some was Type A."

"One woman discovered she was a chimera as late as age 52. In need of a kidney transplant, she was tested so that she might find a match. The results indicated that she was not the mother of two of her three biological children. It turned out that she had originated from two genomes. One genome gave rise to her blood and some of her eggs; other eggs carried a separate genome."

It also leads to questions about DNA testing for criminals.

http://www.nytimes.com/2013/09/17/science/dna-double-take.html?pagewanted=all&_r=0