Answer :
A sex-determination system is a biological system that determines the development of sexual characteristics in an organism. Most sexual organisms have two sexes. Occasionally, there are hermaphrodites in place of one or both sexes.
sex determination will be dependent on male or female. in male, the chromosomes will be X and Y. in female the sex chromosomes will be X and X. when XY joins the product will be male baby. when XX joins the baby will be girl.