06-15-2015, 03:58 PM
How about XX or XY chromosomes? In humans at least. I think in some animals the men are ***** and the women are hetera. (can't remember the suffix.)
You can go to live in France, but you cannot become a Frenchman. You can go to live in Germany or Turkey or Japan, but you cannot become a German, a Turk, or a Japanese. But anyone, from any corner of the Earth, can come to live in America and become an American
![[Image: 4CV0TeR.png]](https://i.imgur.com/4CV0TeR.png)
