This is one of the rare times that someone, in this case Imane Khelif, is a genuine, genetic mutation. I remember when the XY chromosome test was used back when East Germany fielded some pretty manly looking people on the women’s team in the 70’s and 80’s.
If I remember correctly what was discovered was: in normal women the 45/46 chromosome pair is X/X and in men that same pair is X/Y. However in the East Germans case as In Imane Khelifs case the 45th chromosome is X and the 46th chromosome is XY.
Much like someone who has an extra chromosome on chromosome 13 (trisomy 13 or Down Syndrome) this genetic mutation causes changes resulting in unusual physical attributes. Just as someone with Down syndrome is shorter, large head, close set eyes people with X/XY are taller, stronger, denser bone structure, broader shoulders. People with 45/46 X/XY generally do not have the mental difficulties people with Down syndrome do.
If I remember correctly some of the East Germans from the 80s with this condition reproduced naturally as females.
That’s when it was decided “ if they can have babies, they must be women” and it’s been that way ever since.
This is all drawing from 40-year-old memories, so some details might be off. But this is how I remember it. Make up your own mind. I really don’t care at all either way. I’m not a sports guy. I’m just an old guy with a good memory that wanted to put in his two sats.