I admit I only knew the term by watching an episode of 'House' but a casual google search seems to show that the idea is not totally insane.
Chimera - Wikipedia(genetics)
In zoology, a chimera is an animal which has two or more different populations of genetically distinct cells that originated in different zygotes; if the different cells emerged from the same zygote, it is called a mosaicism. It is either acquired through the infusion of allogeneic hematopoietic cells during transplantation or transfusion or it is inherited. In fraternal twins, chimerism occurs by means of blood-vessel anastomoses. Chimeras were named after the mythological creature Chimera.
Chimeras are formed from four parent cells (two fertilized eggs or early embryos are fused together) or three parent cells (a fertilized egg is fused with an unfertilized egg or a fertilized egg is fused with an extra sperm). Each population of cells keeps its own character and the resulting animal is a mosaic of mis-matched parts.
So what is the soul audit on this one then? I guess nem is taking a vacation but maybe another person can take up the cause.
Of course, biblical creationists are committed to belief in God's written Word, the Bible, which forbids bearing false witness; --AIG (lest they forget)