Following is a teaser from an article posted at the October 28, 2015 Time website.
Now how would you chart this one?
Paternity tests are well known for producing some unexpected surprises, but the case involving a Washington man presents a new head-scratcher. After undergoing fertility treatments and having a son, the man and his partner were surprised when blood work showed that the boy couldn’t be related to the father. After two paternity tests showed the father only shared 10% of his child’s DNA, the parents feared the fertility clinic had inseminated the mother with another man’s sperm…
It turned out that the DNA in the man’s sperm, which was 90% his DNA and 10% that of his twin’s, was from his unborn fraternal twin.
