-A high school student from South Africa September 2007 It sure sounds impossible! When two embryos fuse, why don't you get someone with two heads, four arms, and 20 toes? And why don't the two embryos reject each other?
Lydia Fairchild-- is an American woman who exhibits chimerism, with two different sets of DNA present in her body. She was pregnant with her third child when she and the father of her children, Jamie Townsend, separated. When Fairchild applied for child support in 2002, she was requested to provide DNA evidence that Townsend was the father of her children. While the results showed Townsend was certainly the father of the children, the DNA tests indicated that she was not their mother.