Tie Clip XY Art. no. 016
Tie Clip with X and Y stamped in black
Tie clip with X and Y, which are the male chromosomes, are stamped in black. Security chain.
The gender is determined by the karyotype 46 XX, or 46 XY. Meaning that of 46 chromosomes two are telling the gender. For Individuals who have one X and one Y chromosome the gender is male, and two X chromosomes is a female.