Gender puzzle
Geplaatst: do jul 23, 2009 12:07
Ik kwam deze gisteren toevallig tegen...
http://www.youtube.com/watch?v=nYm81S3l0Bg
"Are we on the cusp of discovering what determines gender? The old mantra - all girls have XX chromosomes and all boys have XY - is no longer reliable. Scientists are now looking beyond chromosomes ..."
http://www.youtube.com/watch?v=nYm81S3l0Bg
"Are we on the cusp of discovering what determines gender? The old mantra - all girls have XX chromosomes and all boys have XY - is no longer reliable. Scientists are now looking beyond chromosomes ..."