One of the core teachings of the LDS church is that everyone is born with an essential gender identity based on one's biological sex.    Either you are male or female.  Intersex upsets the notion that there are always clear biological sex distinctions.  Emily Quinn has XY chromosomes, she has no ovaries, no uterus but identifies as a girl - with testes, demonstrating how muddied the idea of the binary male/female can be.