@AnungIkwe How do you definitely know that Brittney does not have an SRY gene? Are you aware of the intersex conditions where the infant has ambiguous genitalia but is actually a male because they have an active SRY gene? Would you say that Caster Semenya is an adult human female? Why aren’t you looking at the entire picture here? It’s not about one characteristic, it’s about all of them put together.