On Mon, Apr 02, 2007 at 12:23:30PM -0700, Judy Ryder wrote: > (As an aside, is there such a thing as half identical twins?)
well, one can imagine a pair of siblings (incl. fraternal twins) who happened to share exactly 50% of their dna. and if they were franternal twins, they'd also share prenatal environment. but you'd have to do a pretty serious amount of looking to see exactly what % of their genomes were shared, and of course *which* genes would matter, too... --vicka
