Woohoo i won...unbelievable.. :) ..thank you so much for this. Following your advice to read your posts, I knew that I needed to search for something that had to do with genetics. So i found your post about chimeras and startet to google my ass off to find out the answer since I usually have nothing to do with medicine. I learned a lot and found it very interesting. So thanks again for giving me the reason to read about that stuff.