Also chromosome tests aren’t a foolproof indication of sex anyway. People can have one set or another while still having the properties associated with the other sex, so it doesn’t really work as a definitive measure. The question is reasonable until you examine it and it’s motives.

The question subtly suggests that if she had a Y chromosome then she has some biological advantage and therefore doesn’t deserve the medal she earned. Does she actually have an advantage from the Y chromosome? Are we going to ensure through DNA testing that all competitors are going to be exactly equal by genetics? If so, we’re going to have 8 clones of Usain Bolt competing for the 100m sprint. Michael Phelps arguably had a biological advantage by having hyper flexible shoulders, are we disqualifying those biological advantages? Of course not, so what do they actually mean when asking those questions about the chromosome? They don’t have meaningful answers to the questions I raise, they just want to add fuel to the fires of the culture war for their own political means.