Sex - Factors in Determining a Person's Sex

1. Chromosomal Sex

Typical: The cells of a female body contain a.o. two X chromosomes (XX). The cells of a male body one X and one Y chromosome (XY). Atypical: In rare cases, there are problematic exceptions, for example combinations like XXY or XYY or XXX. Individuals born with these exceptional chromosome combinations have various problems of physical development or are infertile.