These are the chromosomes that determine the sex of an individual. A person with XX chromosomes is a girl and a person with XY chromosomes is a boy. These sex chromosomes determine the sex of the person.

SEX CHROMOSOME: "The sex chromosome carries genes for sexual traits."
Cite this page: N., Pam M.S., "SEX CHROMOSOME," in, April 13, 2013, (accessed May 18, 2021).