It's been more than fifty years since scientists discovered that the single-celled organism Tetrahymena thermophila has seven sexes. But in all that time, they've never known how each cell's sex, or "mating type," is determined; now they do.
Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/z...
Fuente : http://feeds.sciencedaily.com/~r/sciencedaily/~3/z...